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dc.contributor.author
Dou, Jing
dc.contributor.author
Peng, Yingjie
dc.contributor.author
Renzini, Alvio
dc.contributor.author
Ho, Luis C.
dc.contributor.author
Mannucci, Filippo
dc.contributor.author
Daddi, Emanuele
dc.contributor.author
Gao, Yu
dc.contributor.author
Maiolino, Roberto
dc.contributor.author
Zhang, Chengpeng
dc.contributor.author
Gu, Qiusheng
dc.contributor.author
Di, Li
dc.contributor.author
Lilly, Simon
dc.contributor.author
Yuan, Feng
dc.date.accessioned
2021-03-04T08:24:01Z
dc.date.available
2021-03-04T04:22:35Z
dc.date.available
2021-03-04T08:24:01Z
dc.date.issued
2021-02-01
dc.identifier.issn
0004-637X
dc.identifier.issn
2041-8213
dc.identifier.other
10.3847/1538-4357/abd17c
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/472828
dc.description.abstract
Star formation and quenching are two of the most important processes in galaxy formation and evolution. We explore in the local universe the interrelationships among key integrated galaxy properties, including stellar mass M*, star formation rate (SFR), specific SFR (sSFR), molecular gas mass ${M}_{{{\rm{H}}}_{2}}$, star formation efficiency (SFE) of the molecular gas, and the molecular gas to stellar mass ratio μ. We aim to identify the most fundamental scaling relations among these key galaxy properties and their interrelationships. We show that the integrated ${M}_{{{\rm{H}}}_{2}}$–SFR, SFR–M*, and ${M}_{{{\rm{H}}}_{2}}$–M* relations can be simply transformed from the μ–sSFR, SFE–μ, and SFE–sSFR relations, respectively. The transformation, in principle, can increase or decrease the scatter of each relation. Interestingly, we find that the latter three relations all have significantly smaller scatter than the corresponding former three. We show that the probability to achieve the observed small scatter by accident is extremely close to zero. This suggests that the smaller scatters of the latter three relations are driven by a more universal physical connection among these quantities. We then show that the large scatters in the former relations are due to their systematic dependence on other galaxy properties, and on the star formation and quenching process. We propose the sSFR–μ–SFE relation as the fundamental formation relation (FFR), which governs the star formation and quenching process and provides a simple framework to study galaxy evolution. Other scaling relations, including the integrated Kennicutt–Schmidt law, star-forming main sequence, and molecular gas main sequence, can all be derived from the FFR. © 2021 The American Astronomical Society.
en_US
dc.language.iso
en
en_US
dc.publisher
Institute of Physics
en_US
dc.title
From Haloes to Galaxies. II. The Fundamental Relations in Star Formation and Quenching
en_US
dc.type
Journal Article
dc.date.published
2021-02-05
ethz.journal.title
The Astrophysical Journal
ethz.journal.volume
907
en_US
ethz.journal.issue
2
en_US
ethz.journal.abbreviated
Astrophys. J.
ethz.pages.start
114
en_US
ethz.size
15 p.
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 / Lilly, Simon
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::03613 - Lilly, Simon / Lilly, Simon
ethz.date.deposited
2021-03-04T04:22:42Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-03-04T08:24:15Z
ethz.rosetta.lastUpdated
2022-03-29T05:36:33Z
ethz.rosetta.versionExported
true
ethz.COinS
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