[{"month":"07","intvolume":" 11","scopus_import":"1","oa_version":"Published Version","abstract":[{"text":"The cost-effective conversion of low-grade heat into electricity using thermoelectric devices requires developing alternative materials and material processing technologies able to reduce the currently high device manufacturing costs. In this direction, thermoelectric materials that do not rely on rare or toxic elements such as tellurium or lead need to be produced using high-throughput technologies not involving high temperatures and long processes. Bi2Se3 is an obvious possible Te-free alternative to Bi2Te3 for ambient temperature thermoelectric applications, but its performance is still low for practical applications, and additional efforts toward finding proper dopants are required. Here, we report a scalable method to produce Bi2Se3 nanosheets at low synthesis temperatures. We studied the influence of different dopants on the thermoelectric properties of this material. Among the elements tested, we demonstrated that Sn doping resulted in the best performance. Sn incorporation resulted in a significant improvement to the Bi2Se3 Seebeck coefficient and a reduction in the thermal conductivity in the direction of the hot-press axis, resulting in an overall 60% improvement in the thermoelectric figure of merit of Bi2Se3.","lang":"eng"}],"issue":"7","volume":11,"ec_funded":1,"file":[{"content_type":"application/pdf","access_level":"open_access","relation":"main_file","checksum":"f28a8b5cf80f5605828359bb398463b0","file_id":"10859","success":1,"date_updated":"2022-03-18T09:53:15Z","file_size":4867547,"creator":"dernst","date_created":"2022-03-18T09:53:15Z","file_name":"2021_Nanomaterials_Li.pdf"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","status":"public","keyword":["General Materials Science","General Chemical Engineering"],"type":"journal_article","article_type":"original","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"_id":"10858","file_date_updated":"2022-03-18T09:53:15Z","department":[{"_id":"MaIb"}],"ddc":["540"],"date_updated":"2023-08-17T07:08:30Z","quality_controlled":"1","publisher":"MDPI","oa":1,"acknowledgement":"M.L., Y.Z., T.Z. and K.X. thank the China Scholarship Council for their scholarship\r\nsupport. Y.L. acknowledges funding from the European Union’s Horizon 2020 research and\r\ninnovation program under the Marie Sklodowska-Curie grant agreement No. 754411. J.L. thanks the ICREA Academia program and projects MICINN/FEDER RTI2018-093996-B-C31 and G.C. 2017 SGR 128. ICN2 acknowledges funding from the Generalitat de Catalunya 2017 SGR 327 and the Spanish MINECO ENE2017-85087-C3.","doi":"10.3390/nano11071827","date_published":"2021-07-14T00:00:00Z","date_created":"2022-03-18T09:45:02Z","day":"14","publication":"Nanomaterials","isi":1,"has_accepted_license":"1","year":"2021","project":[{"grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"article_number":"1827","title":"Enhanced thermoelectric performance of n-type Bi2Se3 nanosheets through Sn doping","author":[{"first_name":"Mengyao","last_name":"Li","full_name":"Li, Mengyao"},{"last_name":"Zhang","full_name":"Zhang, Yu","first_name":"Yu"},{"full_name":"Zhang, Ting","last_name":"Zhang","first_name":"Ting"},{"last_name":"Zuo","full_name":"Zuo, Yong","first_name":"Yong"},{"full_name":"Xiao, Ke","last_name":"Xiao","first_name":"Ke"},{"first_name":"Jordi","last_name":"Arbiol","full_name":"Arbiol, Jordi"},{"first_name":"Jordi","last_name":"Llorca","full_name":"Llorca, Jordi"},{"id":"2A70014E-F248-11E8-B48F-1D18A9856A87","first_name":"Yu","last_name":"Liu","orcid":"0000-0001-7313-6740","full_name":"Liu, Yu"},{"last_name":"Cabot","full_name":"Cabot, Andreu","first_name":"Andreu"}],"external_id":{"isi":["000676570000001"]},"article_processing_charge":"No","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"chicago":"Li, Mengyao, Yu Zhang, Ting Zhang, Yong Zuo, Ke Xiao, Jordi Arbiol, Jordi Llorca, Yu Liu, and Andreu Cabot. “Enhanced Thermoelectric Performance of N-Type Bi2Se3 Nanosheets through Sn Doping.” Nanomaterials. MDPI, 2021. https://doi.org/10.3390/nano11071827.","ista":"Li M, Zhang Y, Zhang T, Zuo Y, Xiao K, Arbiol J, Llorca J, Liu Y, Cabot A. 2021. Enhanced thermoelectric performance of n-type Bi2Se3 nanosheets through Sn doping. Nanomaterials. 11(7), 1827.","mla":"Li, Mengyao, et al. “Enhanced Thermoelectric Performance of N-Type Bi2Se3 Nanosheets through Sn Doping.” Nanomaterials, vol. 11, no. 7, 1827, MDPI, 2021, doi:10.3390/nano11071827.","apa":"Li, M., Zhang, Y., Zhang, T., Zuo, Y., Xiao, K., Arbiol, J., … Cabot, A. (2021). Enhanced thermoelectric performance of n-type Bi2Se3 nanosheets through Sn doping. Nanomaterials. MDPI. https://doi.org/10.3390/nano11071827","ama":"Li M, Zhang Y, Zhang T, et al. Enhanced thermoelectric performance of n-type Bi2Se3 nanosheets through Sn doping. Nanomaterials. 2021;11(7). doi:10.3390/nano11071827","ieee":"M. Li et al., “Enhanced thermoelectric performance of n-type Bi2Se3 nanosheets through Sn doping,” Nanomaterials, vol. 11, no. 7. MDPI, 2021.","short":"M. Li, Y. Zhang, T. Zhang, Y. Zuo, K. Xiao, J. Arbiol, J. Llorca, Y. Liu, A. Cabot, Nanomaterials 11 (2021)."}},{"year":"2021","isi":1,"publication":"Current Biology","day":"24","page":"2051-2064.e8","date_created":"2022-03-08T07:51:04Z","date_published":"2021-05-24T00:00:00Z","doi":"10.1016/j.cub.2021.02.043","acknowledgement":"We are grateful to Silvia Prettin, Ina Schleicher, and Petra Hagendorff for expert technical assistance; David Dettbarn for animal keeping and breeding; and Lothar Gröbe and Maria Höxter for cell sorting. We also thank Werner Tegge for peptides and Giorgio Scita for antibodies. This work was supported, in part, by the Deutsche Forschungsgemeinschaft (DFG), Priority Programm SPP1150 (to T.E.B.S., K.R., and M. Sixt), and by DFG grant GRK2223/1 (to K.R.). T.E.B.S. acknowledges support by the Helmholtz Society through HGF impulse fund W2/W3-066 and M. Schnoor by the Mexican Council for Science and Technology (CONACyT, 284292 ), Fund SEP-Cinvestav ( 108 ), and the Royal Society, UK (Newton Advanced Fellowship, NAF/R1/180017 ).","oa":1,"quality_controlled":"1","publisher":"Elsevier","citation":{"ista":"Stahnke S, Döring H, Kusch C, de Gorter DJJ, Dütting S, Guledani A, Pleines I, Schnoor M, Sixt MK, Geffers R, Rohde M, Müsken M, Kage F, Steffen A, Faix J, Nieswandt B, Rottner K, Stradal TEB. 2021. Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology. 31(10), 2051–2064.e8.","chicago":"Stahnke, Stephanie, Hermann Döring, Charly Kusch, David J.J. de Gorter, Sebastian Dütting, Aleks Guledani, Irina Pleines, et al. “Loss of Hem1 Disrupts Macrophage Function and Impacts Migration, Phagocytosis, and Integrin-Mediated Adhesion.” Current Biology. Elsevier, 2021. https://doi.org/10.1016/j.cub.2021.02.043.","short":"S. Stahnke, H. Döring, C. Kusch, D.J.J. de Gorter, S. Dütting, A. Guledani, I. Pleines, M. Schnoor, M.K. Sixt, R. Geffers, M. Rohde, M. Müsken, F. Kage, A. Steffen, J. Faix, B. Nieswandt, K. Rottner, T.E.B. Stradal, Current Biology 31 (2021) 2051–2064.e8.","ieee":"S. Stahnke et al., “Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion,” Current Biology, vol. 31, no. 10. Elsevier, p. 2051–2064.e8, 2021.","ama":"Stahnke S, Döring H, Kusch C, et al. Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology. 2021;31(10):2051-2064.e8. doi:10.1016/j.cub.2021.02.043","apa":"Stahnke, S., Döring, H., Kusch, C., de Gorter, D. J. J., Dütting, S., Guledani, A., … Stradal, T. E. B. (2021). Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology. Elsevier. https://doi.org/10.1016/j.cub.2021.02.043","mla":"Stahnke, Stephanie, et al. “Loss of Hem1 Disrupts Macrophage Function and Impacts Migration, Phagocytosis, and Integrin-Mediated Adhesion.” Current Biology, vol. 31, no. 10, Elsevier, 2021, p. 2051–2064.e8, doi:10.1016/j.cub.2021.02.043."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","article_processing_charge":"No","external_id":{"pmid":["33711252"],"isi":["000654652200002"]},"author":[{"last_name":"Stahnke","full_name":"Stahnke, Stephanie","first_name":"Stephanie"},{"full_name":"Döring, Hermann","last_name":"Döring","first_name":"Hermann"},{"first_name":"Charly","last_name":"Kusch","full_name":"Kusch, Charly"},{"first_name":"David J.J.","full_name":"de Gorter, David J.J.","last_name":"de Gorter"},{"full_name":"Dütting, Sebastian","last_name":"Dütting","first_name":"Sebastian"},{"last_name":"Guledani","full_name":"Guledani, Aleks","first_name":"Aleks"},{"full_name":"Pleines, Irina","last_name":"Pleines","first_name":"Irina"},{"first_name":"Michael","last_name":"Schnoor","full_name":"Schnoor, Michael"},{"id":"41E9FBEA-F248-11E8-B48F-1D18A9856A87","first_name":"Michael K","last_name":"Sixt","full_name":"Sixt, Michael K","orcid":"0000-0002-6620-9179"},{"full_name":"Geffers, Robert","last_name":"Geffers","first_name":"Robert"},{"first_name":"Manfred","last_name":"Rohde","full_name":"Rohde, Manfred"},{"last_name":"Müsken","full_name":"Müsken, Mathias","first_name":"Mathias"},{"first_name":"Frieda","full_name":"Kage, Frieda","last_name":"Kage"},{"first_name":"Anika","last_name":"Steffen","full_name":"Steffen, Anika"},{"last_name":"Faix","full_name":"Faix, Jan","first_name":"Jan"},{"full_name":"Nieswandt, Bernhard","last_name":"Nieswandt","first_name":"Bernhard"},{"first_name":"Klemens","full_name":"Rottner, Klemens","last_name":"Rottner"},{"first_name":"Theresia E.B.","full_name":"Stradal, Theresia E.B.","last_name":"Stradal"}],"title":"Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis, and integrin-mediated adhesion","publication_status":"published","publication_identifier":{"issn":["0960-9822"]},"language":[{"iso":"eng"}],"issue":"10","volume":31,"abstract":[{"text":"Hematopoietic-specific protein 1 (Hem1) is an essential subunit of the WAVE regulatory complex (WRC) in immune cells. WRC is crucial for Arp2/3 complex activation and the protrusion of branched actin filament networks. Moreover, Hem1 loss of function in immune cells causes autoimmune diseases in humans. Here, we show that genetic removal of Hem1 in macrophages diminishes frequency and efficacy of phagocytosis as well as phagocytic cup formation in addition to defects in lamellipodial protrusion and migration. Moreover, Hem1-null macrophages displayed strong defects in cell adhesion despite unaltered podosome formation and concomitant extracellular matrix degradation. Specifically, dynamics of both adhesion and de-adhesion as well as concomitant phosphorylation of paxillin and focal adhesion kinase (FAK) were significantly compromised. Accordingly, disruption of WRC function in non-hematopoietic cells coincided with both defects in adhesion turnover and altered FAK and paxillin phosphorylation. Consistently, platelets exhibited reduced adhesion and diminished integrin αIIbβ3 activation upon WRC removal. Interestingly, adhesion phenotypes, but not lamellipodia formation, were partially rescued by small molecule activation of FAK. A full rescue of the phenotype, including lamellipodia formation, required not only the presence of WRCs but also their binding to and activation by Rac. Collectively, our results uncover that WRC impacts on integrin-dependent processes in a FAK-dependent manner, controlling formation and dismantling of adhesions, relevant for properly grabbing onto extracellular surfaces and particles during cell edge expansion, like in migration or phagocytosis.","lang":"eng"}],"oa_version":"Preprint","pmid":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.1101/2020.03.24.005835"}],"scopus_import":"1","intvolume":" 31","month":"05","date_updated":"2023-08-17T07:01:14Z","department":[{"_id":"MiSi"}],"_id":"10834","article_type":"original","type":"journal_article","keyword":["General Agricultural and Biological Sciences","General Biochemistry","Genetics and Molecular Biology"],"status":"public"},{"doi":"10.1145/3465084.3467937","date_published":"2021-07-21T00:00:00Z","date_created":"2021-08-17T18:14:15Z","page":"469–479","day":"21","publication":"Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing","isi":1,"year":"2021","publisher":"Association for Computing Machinery","quality_controlled":"1","oa":1,"acknowledgement":"This work is partially supported by a Weizmann-UK Making Connections Grant, the Centre for Discrete Mathematics and its Applications (DIMAP), IBM Faculty Award, EPSRC award EP/V01305X/1, European Research Council (ERC) Grant No. 949083, the Minerva foundation with funding from the Federal German Ministry for Education and Research No. 713238, and the European Union’s Horizon 2020 programme under the Marie Skłodowska-Curie grant agreement No 754411.","title":"Improved deterministic (Δ+1) coloring in low-space MPC","author":[{"first_name":"Artur","full_name":"Czumaj, Artur","last_name":"Czumaj"},{"first_name":"Peter","id":"11396234-BB50-11E9-B24C-90FCE5697425","last_name":"Davies","full_name":"Davies, Peter","orcid":"0000-0002-5646-9524"},{"first_name":"Merav","full_name":"Parter, Merav","last_name":"Parter"}],"article_processing_charge":"No","external_id":{"isi":["000744439800048"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"ista":"Czumaj A, Davies P, Parter M. 2021. Improved deterministic (Δ+1) coloring in low-space MPC. Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing. PODC: Symposium on Principles of Distributed Computing, 469–479.","chicago":"Czumaj, Artur, Peter Davies, and Merav Parter. “Improved Deterministic (Δ+1) Coloring in Low-Space MPC.” In Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, 469–479. Association for Computing Machinery, 2021. https://doi.org/10.1145/3465084.3467937.","ama":"Czumaj A, Davies P, Parter M. Improved deterministic (Δ+1) coloring in low-space MPC. In: Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing. Association for Computing Machinery; 2021:469–479. doi:10.1145/3465084.3467937","apa":"Czumaj, A., Davies, P., & Parter, M. (2021). Improved deterministic (Δ+1) coloring in low-space MPC. In Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing (pp. 469–479). Virtual, Italy: Association for Computing Machinery. https://doi.org/10.1145/3465084.3467937","ieee":"A. Czumaj, P. Davies, and M. Parter, “Improved deterministic (Δ+1) coloring in low-space MPC,” in Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Virtual, Italy, 2021, pp. 469–479.","short":"A. Czumaj, P. Davies, M. Parter, in:, Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2021, pp. 469–479.","mla":"Czumaj, Artur, et al. “Improved Deterministic (Δ+1) Coloring in Low-Space MPC.” Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2021, pp. 469–479, doi:10.1145/3465084.3467937."},"project":[{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"ec_funded":1,"language":[{"iso":"eng"}],"publication_identifier":{"isbn":["978-1-4503-8548-0"]},"publication_status":"published","month":"07","main_file_link":[{"open_access":"1","url":"http://wrap.warwick.ac.uk/153753"}],"oa_version":"Submitted Version","abstract":[{"text":"We present a deterministic O(log log log n)-round low-space Massively Parallel Computation (MPC) algorithm for the classical problem of (Δ+1)-coloring on n-vertex graphs. In this model, every machine has sublinear local space of size n^φ for any arbitrary constant φ \\in (0,1). Our algorithm works under the relaxed setting where each machine is allowed to perform exponential local computations, while respecting the n^φ space and bandwidth limitations.\r\n\r\nOur key technical contribution is a novel derandomization of the ingenious (Δ+1)-coloring local algorithm by Chang-Li-Pettie (STOC 2018, SIAM J. Comput. 2020). The Chang-Li-Pettie algorithm runs in T_local =poly(loglog n) rounds, which sets the state-of-the-art randomized round complexity for the problem in the local model. Our derandomization employs a combination of tools, notably pseudorandom generators (PRG) and bounded-independence hash functions.\r\n\r\nThe achieved round complexity of O(logloglog n) rounds matches the bound of log(T_local ), which currently serves an upper bound barrier for all known randomized algorithms for locally-checkable problems in this model. Furthermore, no deterministic sublogarithmic low-space MPC algorithms for the (Δ+1)-coloring problem have been known before.","lang":"eng"}],"department":[{"_id":"DaAl"}],"date_updated":"2023-08-17T07:11:03Z","status":"public","type":"conference","conference":{"start_date":"2021-07-26","end_date":"2021-07-30","location":"Virtual, Italy","name":"PODC: Symposium on Principles of Distributed Computing"},"_id":"9935"},{"acknowledgement":"The authors acknowledge the support of the grant of the Russian Government N 075-15-\r\n2019-1926. G.I.was supported also by the SwissNational Science Foundation grant 200021-179133. The authors are very grateful to the anonymous reviewer for valuable remarks.","oa":1,"quality_controlled":"1","publisher":"De Gruyter","publication":"Analysis and Geometry in Metric Spaces","day":"29","year":"2021","has_accepted_license":"1","isi":1,"date_created":"2022-03-18T09:25:14Z","date_published":"2021-01-29T00:00:00Z","doi":"10.1515/agms-2020-0103","page":"1-18","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"mla":"Ivanov, Grigory, and Igor Tsiutsiurupa. “On the Volume of Sections of the Cube.” Analysis and Geometry in Metric Spaces, vol. 9, no. 1, De Gruyter, 2021, pp. 1–18, doi:10.1515/agms-2020-0103.","ama":"Ivanov G, Tsiutsiurupa I. On the volume of sections of the cube. Analysis and Geometry in Metric Spaces. 2021;9(1):1-18. doi:10.1515/agms-2020-0103","apa":"Ivanov, G., & Tsiutsiurupa, I. (2021). On the volume of sections of the cube. Analysis and Geometry in Metric Spaces. De Gruyter. https://doi.org/10.1515/agms-2020-0103","ieee":"G. Ivanov and I. Tsiutsiurupa, “On the volume of sections of the cube,” Analysis and Geometry in Metric Spaces, vol. 9, no. 1. De Gruyter, pp. 1–18, 2021.","short":"G. Ivanov, I. Tsiutsiurupa, Analysis and Geometry in Metric Spaces 9 (2021) 1–18.","chicago":"Ivanov, Grigory, and Igor Tsiutsiurupa. “On the Volume of Sections of the Cube.” Analysis and Geometry in Metric Spaces. De Gruyter, 2021. https://doi.org/10.1515/agms-2020-0103.","ista":"Ivanov G, Tsiutsiurupa I. 2021. On the volume of sections of the cube. Analysis and Geometry in Metric Spaces. 9(1), 1–18."},"title":"On the volume of sections of the cube","article_processing_charge":"No","external_id":{"isi":["000734286800001"],"arxiv":["2004.02674"]},"author":[{"first_name":"Grigory","id":"87744F66-5C6F-11EA-AFE0-D16B3DDC885E","last_name":"Ivanov","full_name":"Ivanov, Grigory"},{"last_name":"Tsiutsiurupa","full_name":"Tsiutsiurupa, Igor","first_name":"Igor"}],"oa_version":"Published Version","abstract":[{"lang":"eng","text":"We study the properties of the maximal volume k-dimensional sections of the n-dimensional cube [−1, 1]n. We obtain a first order necessary condition for a k-dimensional subspace to be a local maximizer of the volume of such sections, which we formulate in a geometric way. We estimate the length of the projection of a vector of the standard basis of Rn onto a k-dimensional subspace that maximizes the volume of the intersection. We \u001cnd the optimal upper bound on the volume of a planar section of the cube [−1, 1]n , n ≥ 2."}],"intvolume":" 9","month":"01","scopus_import":"1","language":[{"iso":"eng"}],"file":[{"file_size":789801,"date_updated":"2022-03-18T09:31:59Z","creator":"dernst","file_name":"2021_AnalysisMetricSpaces_Ivanov.pdf","date_created":"2022-03-18T09:31:59Z","content_type":"application/pdf","relation":"main_file","access_level":"open_access","success":1,"checksum":"7e615ac8489f5eae580b6517debfdc53","file_id":"10857"}],"publication_status":"published","publication_identifier":{"issn":["2299-3274"]},"issue":"1","volume":9,"_id":"10856","keyword":["Applied Mathematics","Geometry and Topology","Analysis"],"status":"public","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"article_type":"original","type":"journal_article","ddc":["510"],"date_updated":"2023-08-17T07:07:58Z","department":[{"_id":"UlWa"}],"file_date_updated":"2022-03-18T09:31:59Z"},{"publication_status":"published","publication_identifier":{"isbn":["9781450385480"]},"language":[{"iso":"eng"}],"ec_funded":1,"abstract":[{"lang":"eng","text":"In this paper, we study the power and limitations of component-stable algorithms in the low-space model of Massively Parallel Computation (MPC). Recently Ghaffari, Kuhn and Uitto (FOCS 2019) introduced the class of component-stable low-space MPC algorithms, which are, informally, defined as algorithms for which the outputs reported by the nodes in different connected components are required to be independent. This very natural notion was introduced to capture most (if not all) of the known efficient MPC algorithms to date, and it was the first general class of MPC algorithms for which one can show non-trivial conditional lower bounds. In this paper we enhance the framework of component-stable algorithms and investigate its effect on the complexity of randomized and deterministic low-space MPC. Our key contributions include: 1) We revise and formalize the lifting approach of Ghaffari, Kuhn and Uitto. This requires a very delicate amendment of the notion of component stability, which allows us to fill in gaps in the earlier arguments. 2) We also extend the framework to obtain conditional lower bounds for deterministic algorithms and fine-grained lower bounds that depend on the maximum degree Δ. 3) We demonstrate a collection of natural graph problems for which non-component-stable algorithms break the conditional lower bound obtained for component-stable algorithms. This implies that, for both deterministic and randomized algorithms, component-stable algorithms are conditionally weaker than the non-component-stable ones.\r\n\r\nAltogether our results imply that component-stability might limit the computational power of the low-space MPC model, paving the way for improved upper bounds that escape the conditional lower bound setting of Ghaffari, Kuhn, and Uitto."}],"oa_version":"Submitted Version","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2106.01880"}],"month":"07","date_updated":"2023-08-17T07:11:32Z","department":[{"_id":"DaAl"}],"_id":"9933","conference":{"name":"PODC: Principles of Distributed Computing","start_date":"2021-07-26","location":"Virtual, Italy","end_date":"2021-07-30"},"type":"conference","status":"public","year":"2021","isi":1,"publication":"Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing","day":"21","page":"481–491","date_created":"2021-08-17T18:11:16Z","date_published":"2021-07-21T00:00:00Z","doi":"10.1145/3465084.3467903","acknowledgement":"This work is partially supported by a Weizmann-UK Making Connections Grant, the Centre for Discrete Mathematics and its Applications (DIMAP), IBM Faculty Award, EPSRC award EP/V01305X/1, European Research Council (ERC) Grant No. 949083, the Minerva foundation with funding from the Federal German Ministry for Education and Research No. 713238, and the European Union’s Horizon 2020 programme under the Marie Skłodowska-Curie grant agreement No 754411.","oa":1,"quality_controlled":"1","publisher":"Association for Computing Machinery","citation":{"mla":"Czumaj, Artur, et al. “Component Stability in Low-Space Massively Parallel Computation.” Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2021, pp. 481–491, doi:10.1145/3465084.3467903.","ieee":"A. Czumaj, P. Davies, and M. Parter, “Component stability in low-space massively parallel computation,” in Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Virtual, Italy, 2021, pp. 481–491.","short":"A. Czumaj, P. Davies, M. Parter, in:, Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, Association for Computing Machinery, 2021, pp. 481–491.","ama":"Czumaj A, Davies P, Parter M. Component stability in low-space massively parallel computation. In: Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing. Association for Computing Machinery; 2021:481–491. doi:10.1145/3465084.3467903","apa":"Czumaj, A., Davies, P., & Parter, M. (2021). Component stability in low-space massively parallel computation. In Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing (pp. 481–491). Virtual, Italy: Association for Computing Machinery. https://doi.org/10.1145/3465084.3467903","chicago":"Czumaj, Artur, Peter Davies, and Merav Parter. “Component Stability in Low-Space Massively Parallel Computation.” In Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing, 481–491. Association for Computing Machinery, 2021. https://doi.org/10.1145/3465084.3467903.","ista":"Czumaj A, Davies P, Parter M. 2021. Component stability in low-space massively parallel computation. Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing. PODC: Principles of Distributed Computing, 481–491."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","article_processing_charge":"No","external_id":{"arxiv":["2106.01880"],"isi":["000744439800049"]},"author":[{"full_name":"Czumaj, Artur","last_name":"Czumaj","first_name":"Artur"},{"id":"11396234-BB50-11E9-B24C-90FCE5697425","first_name":"Peter","full_name":"Davies, Peter","orcid":"0000-0002-5646-9524","last_name":"Davies"},{"full_name":"Parter, Merav","last_name":"Parter","first_name":"Merav"}],"title":"Component stability in low-space massively parallel computation","project":[{"call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}]},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"chicago":"Lenz, Daniel, Timon Weinmann, and Melchior Wirth. “Self-Adjoint Extensions of Bipartite Hamiltonians.” Proceedings of the Edinburgh Mathematical Society. Cambridge University Press, 2021. https://doi.org/10.1017/S0013091521000080.","ista":"Lenz D, Weinmann T, Wirth M. 2021. Self-adjoint extensions of bipartite Hamiltonians. Proceedings of the Edinburgh Mathematical Society. 64(3), 443–447.","mla":"Lenz, Daniel, et al. “Self-Adjoint Extensions of Bipartite Hamiltonians.” Proceedings of the Edinburgh Mathematical Society, vol. 64, no. 3, Cambridge University Press, 2021, pp. 443–47, doi:10.1017/S0013091521000080.","ama":"Lenz D, Weinmann T, Wirth M. Self-adjoint extensions of bipartite Hamiltonians. Proceedings of the Edinburgh Mathematical Society. 2021;64(3):443-447. doi:10.1017/S0013091521000080","apa":"Lenz, D., Weinmann, T., & Wirth, M. (2021). Self-adjoint extensions of bipartite Hamiltonians. Proceedings of the Edinburgh Mathematical Society. Cambridge University Press. https://doi.org/10.1017/S0013091521000080","short":"D. Lenz, T. Weinmann, M. Wirth, Proceedings of the Edinburgh Mathematical Society 64 (2021) 443–447.","ieee":"D. Lenz, T. Weinmann, and M. Wirth, “Self-adjoint extensions of bipartite Hamiltonians,” Proceedings of the Edinburgh Mathematical Society, vol. 64, no. 3. Cambridge University Press, pp. 443–447, 2021."},"title":"Self-adjoint extensions of bipartite Hamiltonians","author":[{"full_name":"Lenz, Daniel","last_name":"Lenz","first_name":"Daniel"},{"full_name":"Weinmann, Timon","last_name":"Weinmann","first_name":"Timon"},{"orcid":"0000-0002-0519-4241","full_name":"Wirth, Melchior","last_name":"Wirth","first_name":"Melchior","id":"88644358-0A0E-11EA-8FA5-49A33DDC885E"}],"article_processing_charge":"No","external_id":{"arxiv":["1912.03670"],"isi":["000721363700003"]},"day":"01","publication":"Proceedings of the Edinburgh Mathematical Society","isi":1,"year":"2021","doi":"10.1017/S0013091521000080","date_published":"2021-08-01T00:00:00Z","date_created":"2021-07-04T22:01:24Z","page":"443-447","acknowledgement":"M. W. gratefully acknowledges financial support by the German Academic Scholarship Foundation (Studienstiftung des deutschen Volkes). T.W. thanks PAO Gazprom Neft, the Euler International Mathematical Institute in Saint Petersburg and ORISA GmbH for their financial support in the form of scholarships during his Master's and Bachelor's studies respectively. The authors want to thank Mark Malamud for pointing out the reference [1] to them. This work was supported by the Ministry of Science and Higher Education of the Russian Federation, agreement No 075-15-2019-1619.","quality_controlled":"1","publisher":"Cambridge University Press","oa":1,"date_updated":"2023-08-17T07:12:05Z","department":[{"_id":"JaMa"}],"_id":"9627","status":"public","type":"journal_article","article_type":"original","language":[{"iso":"eng"}],"publication_identifier":{"issn":["0013-0915"],"eissn":["1464-3839"]},"publication_status":"published","volume":64,"issue":"3","oa_version":"Published Version","abstract":[{"text":"We compute the deficiency spaces of operators of the form 𝐻𝐴⊗̂ 𝐼+𝐼⊗̂ 𝐻𝐵, for symmetric 𝐻𝐴 and self-adjoint 𝐻𝐵. This enables us to construct self-adjoint extensions (if they exist) by means of von Neumann's theory. The structure of the deficiency spaces for this case was asserted already in Ibort et al. [Boundary dynamics driven entanglement, J. Phys. A: Math. Theor. 47(38) (2014) 385301], but only proven under the restriction of 𝐻𝐵 having discrete, non-degenerate spectrum.","lang":"eng"}],"month":"08","intvolume":" 64","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1017/S0013091521000080"}]},{"doi":"10.1007/s00222-021-01041-5","date_published":"2021-05-03T00:00:00Z","date_created":"2020-05-28T16:48:20Z","page":"885-979","day":"03","publication":"Inventiones Mathematicae","isi":1,"has_accepted_license":"1","year":"2021","publisher":"Springer","quality_controlled":"1","oa":1,"acknowledgement":"We thank Christian Hainzl for helpful discussions and a referee for very careful reading of the paper and many helpful suggestions. NB and RS were supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement No. 694227). Part of the research of NB was conducted on the RZD18 Nice–Milan–Vienna–Moscow. NB thanks Elliott H. Lieb and Peter Otte for explanations about the Luttinger model. PTN has received funding from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy (EXC-2111-390814868). MP acknowledges financial support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (ERC StG MaMBoQ, grant agreement No. 802901). BS gratefully acknowledges financial support from the NCCR SwissMAP, from the Swiss National Science Foundation through the Grant “Dynamical and energetic properties of Bose-Einstein condensates” and from the European Research Council through the ERC-AdG CLaQS (grant agreement No. 834782). All authors acknowledge support for workshop participation from Mathematisches Forschungsinstitut Oberwolfach (Leibniz Association). NB, PTN, BS, and RS acknowledge support for workshop participation from Fondation des Treilles.","title":"Correlation energy of a weakly interacting Fermi gas","author":[{"id":"3DE6C32A-F248-11E8-B48F-1D18A9856A87","first_name":"Niels P","last_name":"Benedikter","full_name":"Benedikter, Niels P","orcid":"0000-0002-1071-6091"},{"full_name":"Nam, Phan Thành","last_name":"Nam","first_name":"Phan Thành"},{"last_name":"Porta","full_name":"Porta, Marcello","first_name":"Marcello"},{"last_name":"Schlein","full_name":"Schlein, Benjamin","first_name":"Benjamin"},{"first_name":"Robert","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","full_name":"Seiringer, Robert","orcid":"0000-0002-6781-0521","last_name":"Seiringer"}],"article_processing_charge":"Yes (via OA deal)","external_id":{"isi":["000646573600001"],"arxiv":["2005.08933"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"ista":"Benedikter NP, Nam PT, Porta M, Schlein B, Seiringer R. 2021. Correlation energy of a weakly interacting Fermi gas. Inventiones Mathematicae. 225, 885–979.","chicago":"Benedikter, Niels P, Phan Thành Nam, Marcello Porta, Benjamin Schlein, and Robert Seiringer. “Correlation Energy of a Weakly Interacting Fermi Gas.” Inventiones Mathematicae. Springer, 2021. https://doi.org/10.1007/s00222-021-01041-5.","ieee":"N. P. Benedikter, P. T. Nam, M. Porta, B. Schlein, and R. Seiringer, “Correlation energy of a weakly interacting Fermi gas,” Inventiones Mathematicae, vol. 225. Springer, pp. 885–979, 2021.","short":"N.P. Benedikter, P.T. Nam, M. Porta, B. Schlein, R. Seiringer, Inventiones Mathematicae 225 (2021) 885–979.","ama":"Benedikter NP, Nam PT, Porta M, Schlein B, Seiringer R. Correlation energy of a weakly interacting Fermi gas. Inventiones Mathematicae. 2021;225:885-979. doi:10.1007/s00222-021-01041-5","apa":"Benedikter, N. P., Nam, P. T., Porta, M., Schlein, B., & Seiringer, R. (2021). Correlation energy of a weakly interacting Fermi gas. Inventiones Mathematicae. Springer. https://doi.org/10.1007/s00222-021-01041-5","mla":"Benedikter, Niels P., et al. “Correlation Energy of a Weakly Interacting Fermi Gas.” Inventiones Mathematicae, vol. 225, Springer, 2021, pp. 885–979, doi:10.1007/s00222-021-01041-5."},"project":[{"_id":"B67AFEDC-15C9-11EA-A837-991A96BB2854","name":"IST Austria Open Access Fund"},{"grant_number":"694227","name":"Analysis of quantum many-body systems","call_identifier":"H2020","_id":"25C6DC12-B435-11E9-9278-68D0E5697425"}],"volume":225,"ec_funded":1,"file":[{"date_created":"2022-05-16T12:23:40Z","file_name":"2021_InventMath_Benedikter.pdf","creator":"dernst","date_updated":"2022-05-16T12:23:40Z","file_size":1089319,"checksum":"f38c79dfd828cdc7f49a34b37b83d376","file_id":"11386","success":1,"access_level":"open_access","relation":"main_file","content_type":"application/pdf"}],"language":[{"iso":"eng"}],"publication_identifier":{"eissn":["1432-1297"],"issn":["0020-9910"]},"publication_status":"published","month":"05","intvolume":" 225","scopus_import":"1","oa_version":"Published Version","abstract":[{"text":"We derive rigorously the leading order of the correlation energy of a Fermi gas in a scaling regime of high density and weak interaction. The result verifies the prediction of the random-phase approximation. Our proof refines the method of collective bosonization in three dimensions. We approximately diagonalize an effective Hamiltonian describing approximately bosonic collective excitations around the Hartree–Fock state, while showing that gapless and non-collective excitations have only a negligible effect on the ground state energy.","lang":"eng"}],"file_date_updated":"2022-05-16T12:23:40Z","department":[{"_id":"RoSe"}],"ddc":["510"],"date_updated":"2023-08-21T06:30:30Z","status":"public","article_type":"original","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","short":"CC BY (4.0)"},"_id":"7901"},{"citation":{"ista":"Berzin E, Secunda A, Cen R, Menegas A, Götberg YLL. 2021. Spectral signatures of population III and envelope-stripped stars in galaxies at the epoch of reionization. The Astrophysical Journal. 918(1), 5.","chicago":"Berzin, Elizabeth, Amy Secunda, Renyue Cen, Alexander Menegas, and Ylva Louise Linsdotter Götberg. “Spectral Signatures of Population III and Envelope-Stripped Stars in Galaxies at the Epoch of Reionization.” The Astrophysical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac0af6.","ama":"Berzin E, Secunda A, Cen R, Menegas A, Götberg YLL. Spectral signatures of population III and envelope-stripped stars in galaxies at the epoch of reionization. The Astrophysical Journal. 2021;918(1). doi:10.3847/1538-4357/ac0af6","apa":"Berzin, E., Secunda, A., Cen, R., Menegas, A., & Götberg, Y. L. L. (2021). Spectral signatures of population III and envelope-stripped stars in galaxies at the epoch of reionization. The Astrophysical Journal. American Astronomical Society. https://doi.org/10.3847/1538-4357/ac0af6","ieee":"E. Berzin, A. Secunda, R. Cen, A. Menegas, and Y. L. L. Götberg, “Spectral signatures of population III and envelope-stripped stars in galaxies at the epoch of reionization,” The Astrophysical Journal, vol. 918, no. 1. American Astronomical Society, 2021.","short":"E. Berzin, A. Secunda, R. Cen, A. Menegas, Y.L.L. Götberg, The Astrophysical Journal 918 (2021).","mla":"Berzin, Elizabeth, et al. “Spectral Signatures of Population III and Envelope-Stripped Stars in Galaxies at the Epoch of Reionization.” The Astrophysical Journal, vol. 918, no. 1, 5, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac0af6."},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","external_id":{"arxiv":["2102.08408"]},"article_processing_charge":"No","author":[{"first_name":"Elizabeth","full_name":"Berzin, Elizabeth","last_name":"Berzin"},{"last_name":"Secunda","full_name":"Secunda, Amy","first_name":"Amy"},{"first_name":"Renyue","full_name":"Cen, Renyue","last_name":"Cen"},{"full_name":"Menegas, Alexander","last_name":"Menegas","first_name":"Alexander"},{"first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","orcid":"0000-0002-6960-6911","full_name":"Götberg, Ylva Louise Linsdotter","last_name":"Götberg"}],"title":"Spectral signatures of population III and envelope-stripped stars in galaxies at the epoch of reionization","article_number":"5","year":"2021","publication":"The Astrophysical Journal","day":"27","date_created":"2023-08-03T10:11:24Z","date_published":"2021-08-27T00:00:00Z","doi":"10.3847/1538-4357/ac0af6","oa":1,"quality_controlled":"1","publisher":"American Astronomical Society","date_updated":"2023-08-21T11:44:50Z","extern":"1","_id":"13456","article_type":"original","type":"journal_article","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"status":"public","publication_status":"published","publication_identifier":{"eissn":["1538-4357"],"issn":["0004-637X"]},"language":[{"iso":"eng"}],"issue":"1","volume":918,"abstract":[{"text":"While most simulations of the epoch of reionization have focused on single-stellar populations in star-forming dwarf galaxies, products of binary evolution are expected to significantly contribute to emissions of hydrogen-ionizing photons. Among these products are stripped stars (or helium stars), which have their envelopes stripped from interactions with binary companions, leaving an exposed helium core. Previous work has suggested these stripped stars can dominate the Lyman Continuum (LyC) photon output of high-redshift, low-luminosity galaxies post-starburst. Other sources of hard radiation in the early universe include zero-metallicity Population iii stars, which may have similar spectral energy distribution (SED) properties to galaxies with radiation dominated by stripped-star emissions. Here, we use four metrics (the power-law exponent over wavelength intervals 240–500 Å, 600–900 Å, and 1200–2000 Å, and the ratio of total luminosity in FUV wavelengths to LyC wavelengths) to compare the SEDs of simulated galaxies with only single-stellar evolution, galaxies containing stripped stars, and galaxies containing Population iii stars, with four different initial mass functions (IMFs). We find that stripped stars significantly alter SEDs in the LyC range of galaxies at the epoch of reionization. SEDs in galaxies with stripped stars have lower power-law indices in the LyC range and lower FUV to LyC luminosity ratios. These differences in SEDs are present at all considered luminosities (${M}_{\\mathrm{UV}}\\gt -15$, AB system), and are most pronounced for lower-luminosity galaxies. Intrinsic SEDs as well as those with interstellar medium absorption of galaxies with stripped stars and Population iii stars are found to be distinct for all tested Population iii IMFs.","lang":"eng"}],"oa_version":"Published Version","main_file_link":[{"open_access":"1","url":"https://doi.org/10.3847/1538-4357/ac0af6"}],"scopus_import":"1","intvolume":" 918","month":"08"},{"_id":"13458","status":"public","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"type":"journal_article","article_type":"original","extern":"1","date_updated":"2023-08-21T11:37:48Z","oa_version":"Preprint","abstract":[{"text":"Most massive stars experience binary interactions in their lifetimes that can alter both the surface and core structure of the stripped star with significant effects on their ultimate fate as core-collapse supernovae. However, core-collapse supernovae simulations to date have focused almost exclusively on the evolution of single stars. We present a systematic simulation study of single and binary-stripped stars with the same initial mass as candidates for core-collapse supernovae (11–21 M⊙). Generally, we find that binary-stripped stars core tend to have a smaller compactness parameter, with a more prominent, deeper silicon/oxygen interface, and explode preferentially to the corresponding single stars of the same initial mass. Such a dichotomy of behavior between these two modes of evolution would have important implications for supernovae statistics, including the final neutron star masses, explosion energies, and nucleosynthetic yields. Binary-stripped remnants are also well poised to populate the possible mass gap between the heaviest neutron stars and the lightest black holes. Our work presents an improvement along two fronts, as we self-consistently account for the pre-collapse stellar evolution and the subsequent explosion outcome. Even so, our results emphasize the need for more detailed stellar evolutionary models to capture the sensitive nature of explosion outcome.","lang":"eng"}],"month":"07","intvolume":" 916","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2104.03317"}],"language":[{"iso":"eng"}],"publication_identifier":{"issn":["2041-8205"],"eissn":["2041-8213"]},"publication_status":"published","volume":916,"issue":"1","article_number":"L5","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ama":"Vartanyan D, Laplace E, Renzo M, Götberg YLL, Burrows A, de Mink SE. Binary-stripped stars as core-collapse supernovae progenitors. The Astrophysical Journal Letters. 2021;916(1). doi:10.3847/2041-8213/ac0b42","apa":"Vartanyan, D., Laplace, E., Renzo, M., Götberg, Y. L. L., Burrows, A., & de Mink, S. E. (2021). Binary-stripped stars as core-collapse supernovae progenitors. The Astrophysical Journal Letters. American Astronomical Society. https://doi.org/10.3847/2041-8213/ac0b42","ieee":"D. Vartanyan, E. Laplace, M. Renzo, Y. L. L. Götberg, A. Burrows, and S. E. de Mink, “Binary-stripped stars as core-collapse supernovae progenitors,” The Astrophysical Journal Letters, vol. 916, no. 1. American Astronomical Society, 2021.","short":"D. Vartanyan, E. Laplace, M. Renzo, Y.L.L. Götberg, A. Burrows, S.E. de Mink, The Astrophysical Journal Letters 916 (2021).","mla":"Vartanyan, David, et al. “Binary-Stripped Stars as Core-Collapse Supernovae Progenitors.” The Astrophysical Journal Letters, vol. 916, no. 1, L5, American Astronomical Society, 2021, doi:10.3847/2041-8213/ac0b42.","ista":"Vartanyan D, Laplace E, Renzo M, Götberg YLL, Burrows A, de Mink SE. 2021. Binary-stripped stars as core-collapse supernovae progenitors. The Astrophysical Journal Letters. 916(1), L5.","chicago":"Vartanyan, David, Eva Laplace, Mathieu Renzo, Ylva Louise Linsdotter Götberg, Adam Burrows, and Selma E. de Mink. “Binary-Stripped Stars as Core-Collapse Supernovae Progenitors.” The Astrophysical Journal Letters. American Astronomical Society, 2021. https://doi.org/10.3847/2041-8213/ac0b42."},"title":"Binary-stripped stars as core-collapse supernovae progenitors","author":[{"first_name":"David","last_name":"Vartanyan","full_name":"Vartanyan, David"},{"last_name":"Laplace","full_name":"Laplace, Eva","first_name":"Eva"},{"first_name":"Mathieu","full_name":"Renzo, Mathieu","last_name":"Renzo"},{"first_name":"Ylva Louise Linsdotter","id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","orcid":"0000-0002-6960-6911","full_name":"Götberg, Ylva Louise Linsdotter","last_name":"Götberg"},{"first_name":"Adam","full_name":"Burrows, Adam","last_name":"Burrows"},{"last_name":"de Mink","full_name":"de Mink, Selma E.","first_name":"Selma E."}],"external_id":{"arxiv":["2104.03317"]},"article_processing_charge":"No","quality_controlled":"1","publisher":"American Astronomical Society","oa":1,"day":"23","publication":"The Astrophysical Journal Letters","year":"2021","doi":"10.3847/2041-8213/ac0b42","date_published":"2021-07-23T00:00:00Z","date_created":"2023-08-03T10:11:45Z"},{"day":"04","publication":"The Astronomical Journal","year":"2021","date_published":"2021-05-04T00:00:00Z","doi":"10.3847/1538-3881/abf144","date_created":"2023-08-03T10:11:57Z","publisher":"American Astronomical Society","quality_controlled":"1","oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"chicago":"Wang, Luqian, Douglas R. Gies, Geraldine J. Peters, Ylva Louise Linsdotter Götberg, S. Drew Chojnowski, Kathryn V. Lester, and Steve B. Howell. “The Detection and Characterization of Be+sdO Binaries from HST/STIS FUV Spectroscopy.” The Astronomical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-3881/abf144.","ista":"Wang L, Gies DR, Peters GJ, Götberg YLL, Chojnowski SD, Lester KV, Howell SB. 2021. The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy. The Astronomical Journal. 161(5), 248.","mla":"Wang, Luqian, et al. “The Detection and Characterization of Be+sdO Binaries from HST/STIS FUV Spectroscopy.” The Astronomical Journal, vol. 161, no. 5, 248, American Astronomical Society, 2021, doi:10.3847/1538-3881/abf144.","short":"L. Wang, D.R. Gies, G.J. Peters, Y.L.L. Götberg, S.D. Chojnowski, K.V. Lester, S.B. Howell, The Astronomical Journal 161 (2021).","ieee":"L. Wang et al., “The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy,” The Astronomical Journal, vol. 161, no. 5. American Astronomical Society, 2021.","apa":"Wang, L., Gies, D. R., Peters, G. J., Götberg, Y. L. L., Chojnowski, S. D., Lester, K. V., & Howell, S. B. (2021). The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy. The Astronomical Journal. American Astronomical Society. https://doi.org/10.3847/1538-3881/abf144","ama":"Wang L, Gies DR, Peters GJ, et al. The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy. The Astronomical Journal. 2021;161(5). doi:10.3847/1538-3881/abf144"},"title":"The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy","author":[{"first_name":"Luqian","full_name":"Wang, Luqian","last_name":"Wang"},{"full_name":"Gies, Douglas R.","last_name":"Gies","first_name":"Douglas R."},{"last_name":"Peters","full_name":"Peters, Geraldine J.","first_name":"Geraldine J."},{"id":"d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d","first_name":"Ylva Louise Linsdotter","orcid":"0000-0002-6960-6911","full_name":"Götberg, Ylva Louise Linsdotter","last_name":"Götberg"},{"first_name":"S. Drew","full_name":"Chojnowski, S. Drew","last_name":"Chojnowski"},{"first_name":"Kathryn V.","full_name":"Lester, Kathryn V.","last_name":"Lester"},{"full_name":"Howell, Steve B.","last_name":"Howell","first_name":"Steve B."}],"external_id":{"arxiv":["2103.13642"]},"article_processing_charge":"No","article_number":"248","language":[{"iso":"eng"}],"publication_identifier":{"eissn":["1538-3881"],"issn":["0004-6256"]},"publication_status":"published","issue":"5","volume":161,"oa_version":"Preprint","abstract":[{"text":"The B emission-line stars are rapid rotators that were probably spun up by mass and angular momentum accretion through mass transfer in an interacting binary. Mass transfer will strip the donor star of its envelope to create a small and hot subdwarf remnant. Here we report on Hubble Space Telescope/STIS far-ultraviolet spectroscopy of a sample of Be stars that reveals the presence of the hot sdO companion through the calculation of cross-correlation functions of the observed and model spectra. We clearly detect the spectral signature of the sdO star in 10 of the 13 stars in the sample, and the spectral signals indicate that the sdO stars are hot, relatively faint, and slowly rotating as predicted by models. A comparison of their temperatures and radii with evolutionary tracks indicates that the sdO stars occupy the relatively long-lived, He-core burning stage. Only 1 of the 10 detections was a known binary prior to this investigation, which emphasizes the difficulty of finding such Be+sdO binaries through optical spectroscopy. However, these results and others indicate that many Be stars probably host hot subdwarf companions.","lang":"eng"}],"month":"05","intvolume":" 161","scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2103.13642"}],"extern":"1","date_updated":"2023-08-21T11:35:50Z","_id":"13459","status":"public","keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"article_type":"original","type":"journal_article"}]