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Constraints on the Evolution of the Galaxy Stellar Mass Function. I. Role of Star Formation, Mergers, and Stellar Stripping
Contini, E.; Kang, Xi; Romeo, A. D.; Xia, Q.
2017-03-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume837Issue:1Pages:13
Corresponding AuthorContini, E.(contini@pmo.ac.cn)
AbstractWe study the connection between the observed star formation rate-stellar mass (SFR-M-*) relation and the evolution of the stellar mass function (SMF) by means of a subhalo abundance matching technique coupled to merger trees extracted from an N-body simulation. Our approach, which considers both galaxy mergers and stellar stripping, is to force the model to match the observed SMF at redshift z > 2, and let it evolve down to the present time according to the observed SFR-M-* relation. In this study, we use two different sets of SMFs and two SFR-M-* relations: a simple power law and a relation with a mass-dependent slope. Our analysis shows that the evolution of the SMF is more consistent with an SFR-M-* relation with a mass-dependent slope, in agreement with predictions from other models of galaxy evolution and recent observations. In order to fully and realistically describe the evolution of the SMF, both mergers and stellar stripping must be considered, and we find that both have almost equal effects on the evolution of SMF at the massive end. Taking into account the systematic uncertainties in the observed data, the high-mass end of the SMF obtained by considering stellar stripping results in good agreement with recent observational data from the Sloan Digital Sky Survey. At log M-* < 11.2, our prediction at z = 0.1 is close to Li & White data, but the high-mass end (log M-* > 11.2) is in better agreement with D'Souza et al. data which account for more massive galaxies.
Keywordgalaxies: clusters: general galaxies: evolution Galaxy: formation
DOI10.3847/1538-4357/aa5d16
WOS KeywordEXTRAGALACTIC LEGACY SURVEY ; LOW-REDSHIFT UNIVERSE ; DARK-MATTER HALOS ; LESS-THAN 4 ; COSMOLOGICAL SIMULATIONS ; COMPREHENSIVE ANALYSIS ; FORMATION HISTORIES ; LUMINOSITY FUNCTION ; PHYSICAL-PROPERTIES ; QUIESCENT GALAXIES
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000401170800012
PublisherIOP PUBLISHING LTD
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/23082
Collection中国科学院紫金山天文台
Corresponding AuthorContini, E.
AffiliationPurple Mt Observ, Partner Grp MPI Astron, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Contini, E.,Kang, Xi,Romeo, A. D.,et al. Constraints on the Evolution of the Galaxy Stellar Mass Function. I. Role of Star Formation, Mergers, and Stellar Stripping[J]. ASTROPHYSICAL JOURNAL,2017,837(1):13.
APA Contini, E.,Kang, Xi,Romeo, A. D.,&Xia, Q..(2017).Constraints on the Evolution of the Galaxy Stellar Mass Function. I. Role of Star Formation, Mergers, and Stellar Stripping.ASTROPHYSICAL JOURNAL,837(1),13.
MLA Contini, E.,et al."Constraints on the Evolution of the Galaxy Stellar Mass Function. I. Role of Star Formation, Mergers, and Stellar Stripping".ASTROPHYSICAL JOURNAL 837.1(2017):13.
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