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dc.contributor.author
Sobral, David
dc.contributor.author
van der Wel, Arjen
dc.contributor.author
Bezanson, Rachel
dc.contributor.author
Bell, Eric
dc.contributor.author
Muzzin, Adam
dc.contributor.author
D'Eugenio, Francesco
dc.contributor.author
Darvish, Behnam
dc.contributor.author
Gallazzi, Anna
dc.contributor.author
Wu, Po-Feng
dc.date.accessioned
2022-06-13T12:36:36Z
dc.date.available
2022-03-03T04:04:18Z
dc.date.available
2022-06-13T12:36:36Z
dc.date.issued
2022-02-20
dc.identifier.issn
0004-637X
dc.identifier.issn
2041-8213
dc.identifier.other
10.3847/1538-4357/ac4419
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/535008
dc.identifier.doi
10.3929/ethz-b-000535008
dc.description.abstract
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 similar to 0.6-1 in the COSMOS field. Leveraging the statistical power and depth of LEGA-C, we reveal significant gradients in D( n )4000 and H delta equivalent widths (EWs) distributions over the stellar mass versus environment 2D spaces for the massive galaxy population (M > 10(10) M (circle dot)) at z similar to 0.6-1.0. D( n )4000 and H delta 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 D( n )4000 and H delta EW, when controlling for stellar mass, are driven by quiescent galaxies. Regardless of being centrals or satellites, star-forming galaxies reveal D( n )4000 and H delta 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.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
IOP Publishing
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.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
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
The Astrophysical Journal
ethz.journal.volume
926
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
Astrophys. J.
ethz.pages.start
117
en_US
ethz.size
15 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Bristol
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::03613 - Lilly, Simon (emeritus) / Lilly, Simon (emeritus)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::03613 - Lilly, Simon (emeritus) / Lilly, Simon (emeritus)
ethz.date.deposited
2022-03-03T04:04:45Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-06-13T12:36:43Z
ethz.rosetta.lastUpdated
2024-02-02T17:25:22Z
ethz.rosetta.versionExported
true
ethz.COinS
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