{"keyword":["Space and Planetary Science","Astronomy and Astrophysics"],"citation":{"ama":"Sobral D, van der Wel A, Bezanson R, et al. The LEGA-C of nature and nurture in stellar populations at z ∼ 0.6–1.0: Dn4000 and Hδ reveal different assembly histories for quiescent galaxies in different environments. <i>The Astrophysical Journal</i>. 2022;926(2). doi:<a href=\"https://doi.org/10.3847/1538-4357/ac4419\">10.3847/1538-4357/ac4419</a>","short":"D. Sobral, A. van der Wel, R. Bezanson, E. Bell, A. Muzzin, F. D’Eugenio, B. Darvish, A. Gallazzi, P.-F. Wu, M. Maseda, J.J. Matthee, A. Paulino-Afonso, C. Straatman, P.G. van Dokkum, The Astrophysical Journal 926 (2022).","mla":"Sobral, David, et al. “The LEGA-C of Nature and Nurture in Stellar Populations at z ∼ 0.6–1.0: Dn4000 and Hδ Reveal Different Assembly Histories for Quiescent Galaxies in Different Environments.” <i>The Astrophysical Journal</i>, vol. 926, no. 2, 117, IOP Publishing, 2022, doi:<a href=\"https://doi.org/10.3847/1538-4357/ac4419\">10.3847/1538-4357/ac4419</a>.","ieee":"D. Sobral <i>et al.</i>, “The LEGA-C of nature and nurture in stellar populations at z ∼ 0.6–1.0: Dn4000 and Hδ reveal different assembly histories for quiescent galaxies in different environments,” <i>The Astrophysical Journal</i>, vol. 926, no. 2. IOP Publishing, 2022.","ista":"Sobral D, van der Wel A, Bezanson R, Bell E, Muzzin A, D’Eugenio F, Darvish B, Gallazzi A, Wu P-F, Maseda M, Matthee JJ, Paulino-Afonso A, Straatman C, van Dokkum PG. 2022. The LEGA-C of nature and nurture in stellar populations at z ∼ 0.6–1.0: Dn4000 and Hδ reveal different assembly histories for quiescent galaxies in different environments. The Astrophysical Journal. 926(2), 117.","chicago":"Sobral, David, Arjen van der Wel, Rachel Bezanson, Eric Bell, Adam Muzzin, Francesco D’Eugenio, Behnam Darvish, et al. “The LEGA-C of Nature and Nurture in Stellar Populations at z ∼ 0.6–1.0: Dn4000 and Hδ Reveal Different Assembly Histories for Quiescent Galaxies in Different Environments.” <i>The Astrophysical Journal</i>. IOP Publishing, 2022. <a href=\"https://doi.org/10.3847/1538-4357/ac4419\">https://doi.org/10.3847/1538-4357/ac4419</a>.","apa":"Sobral, D., van der Wel, A., Bezanson, R., Bell, E., Muzzin, A., D’Eugenio, F., … van Dokkum, P. G. (2022). The LEGA-C of nature and nurture in stellar populations at z ∼ 0.6–1.0: Dn4000 and Hδ reveal different assembly histories for quiescent galaxies in different environments. <i>The Astrophysical Journal</i>. IOP Publishing. <a href=\"https://doi.org/10.3847/1538-4357/ac4419\">https://doi.org/10.3847/1538-4357/ac4419</a>"},"year":"2022","extern":"1","date_created":"2022-07-06T12:38:42Z","article_number":"117","title":"The LEGA-C of nature and nurture in stellar populations at z ∼ 0.6–1.0: Dn4000 and Hδ reveal different assembly histories for quiescent galaxies in different environments","language":[{"iso":"eng"}],"month":"02","publication_status":"published","acknowledgement":"We thank the reviewer for several valuable comments that improved the clarity of the manuscript. P.F.W. acknowledges the support of the fellowship by the East Asian Core Observatories Association. This work is based on observations made with ESO VLT Telescopes at the La Silla Paranal Observatory under programmes ID 194-A.2005 and 1100.A-0949 (The LEGA-C Public Spectroscopy Survey). This project has received funding from the European Research Council (ERC) under the European Union—Horizon 2020 research and innovation program (grant agreement No. 683184).","quality_controlled":"1","publisher":"IOP Publishing","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2112.08372"}],"type":"journal_article","day":"17","scopus_import":"1","status":"public","article_type":"original","volume":926,"_id":"11510","publication":"The Astrophysical Journal","external_id":{"arxiv":["2112.08372"]},"date_updated":"2022-07-19T09:37:42Z","publication_identifier":{"issn":["0004-637X"],"eissn":["1538-4357"]},"abstract":[{"lang":"eng","text":"Galaxy evolution is driven by a variety of physical processes that are predicted to proceed at different rates for different dark matter haloes and environments across cosmic times. A record of this evolution is preserved in galaxy stellar populations, which we can access using absorption-line spectroscopy. Here we explore the large LEGA-C survey (DR3) to investigate the role of the environment and stellar mass on stellar populations at z ∼ 0.6–1 in the COSMOS field. Leveraging the statistical power and depth of LEGA-C, we reveal significant gradients in Dn4000 and Hδ equivalent widths (EWs) distributions over the stellar mass versus environment 2D spaces for the massive galaxy population (M > 1010 M⊙) at z ∼ 0.6–1.0. Dn4000 and Hδ EWs primarily depend on stellar mass, but they also depend on environment at fixed stellar mass. By splitting the sample into centrals and satellites, and in terms of star-forming galaxies and quiescent galaxies, we reveal that the significant environmental trends of Dn4000 and Hδ EW, when controlling for stellar mass, are driven by quiescent galaxies. Regardless of being centrals or satellites, star-forming galaxies reveal Dn4000 and Hδ EWs, which depend strongly on their stellar mass and are completely independent of the environment at 0.6 < z < 1.0. The environmental trends seen for satellite galaxies are fully driven by the trends that hold only for quiescent galaxies, combined with the strong environmental dependency of the quiescent fraction at fixed stellar mass. Our results are consistent with recent predictions from simulations that point toward massive galaxies forming first in overdensities or the most compact dark matter haloes."}],"date_published":"2022-02-17T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.3847/1538-4357/ac4419","intvolume":"       926","article_processing_charge":"No","author":[{"last_name":"Sobral","first_name":"David","full_name":"Sobral, David"},{"full_name":"van der Wel, Arjen","first_name":"Arjen","last_name":"van der Wel"},{"full_name":"Bezanson, Rachel","first_name":"Rachel","last_name":"Bezanson"},{"last_name":"Bell","first_name":"Eric","full_name":"Bell, Eric"},{"full_name":"Muzzin, Adam","first_name":"Adam","last_name":"Muzzin"},{"last_name":"D’Eugenio","full_name":"D’Eugenio, Francesco","first_name":"Francesco"},{"full_name":"Darvish, Behnam","first_name":"Behnam","last_name":"Darvish"},{"full_name":"Gallazzi, Anna","first_name":"Anna","last_name":"Gallazzi"},{"full_name":"Wu, Po-Feng","first_name":"Po-Feng","last_name":"Wu"},{"first_name":"Michael","full_name":"Maseda, Michael","last_name":"Maseda"},{"first_name":"Jorryt J","full_name":"Matthee, Jorryt J","last_name":"Matthee","orcid":"0000-0003-2871-127X","id":"7439a258-f3c0-11ec-9501-9df22fe06720"},{"last_name":"Paulino-Afonso","full_name":"Paulino-Afonso, Ana","first_name":"Ana"},{"full_name":"Straatman, Caroline","first_name":"Caroline","last_name":"Straatman"},{"last_name":"van Dokkum","full_name":"van Dokkum, Pieter G.","first_name":"Pieter G."}],"oa":1,"oa_version":"Published Version","issue":"2"}