Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/25014
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Song, Mimi | en_US |
dc.contributor.author | Finkelstein, Steven L. | en_US |
dc.contributor.author | Ashby, Matthew L. N. | en_US |
dc.contributor.author | GRAZIAN, Andrea | en_US |
dc.contributor.author | Lu, Yu | en_US |
dc.contributor.author | Papovich, Casey | en_US |
dc.contributor.author | Salmon, Brett | en_US |
dc.contributor.author | Somerville, Rachel S. | en_US |
dc.contributor.author | DICKINSON, MARK | en_US |
dc.contributor.author | Duncan, K. | en_US |
dc.contributor.author | Faber, Sandy M. | en_US |
dc.contributor.author | Fazio, Giovanni G. | en_US |
dc.contributor.author | Ferguson, Henry C. | en_US |
dc.contributor.author | FONTANA, Adriano | en_US |
dc.contributor.author | Guo, Yicheng | en_US |
dc.contributor.author | Hathi, Nimish | en_US |
dc.contributor.author | Lee, Seong-Kook | en_US |
dc.contributor.author | MERLIN, Emiliano | en_US |
dc.contributor.author | Willner, S. P. | en_US |
dc.date.accessioned | 2020-05-20T15:45:23Z | - |
dc.date.available | 2020-05-20T15:45:23Z | - |
dc.date.issued | 2016 | en_US |
dc.identifier.issn | 0004-637X | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/25014 | - |
dc.description.abstract | We present galaxy stellar mass functions (GSMFs) at z = 4-8 from a rest-frame ultraviolet (UV) selected sample of ∼4500 galaxies, found via photometric redshifts over an area of ∼280 arcmin<SUP>2</SUP> in the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey (CANDELS)/Great Observatories Origins Deep Survey (GOODS) fields and the Hubble Ultra Deep Field. The deepest Spitzer/IRAC data to date and the relatively large volume allow us to place a better constraint at both the low- and high-mass ends of the GSMFs compared to previous space-based studies from pre-CANDELS observations. Supplemented by a stacking analysis, we find a linear correlation between the rest-frame UV absolute magnitude at 1500 Å ({M}<SUB>{{UV</SUB>}}) and logarithmic stellar mass ({log}{M}<SUB>* </SUB>) that holds for galaxies with {log}({M}<SUB>* </SUB>/{M}<SUB>☉ </SUB>)≲ 10. We use simulations to validate our method of measuring the slope of the {log}{M}<SUB>* </SUB>-M <SUB>UV</SUB> relation, finding that the bias is minimized with a hybrid technique combining photometry of individual bright galaxies with stacked photometry for faint galaxies. The resultant measured slopes do not significantly evolve over z = 4-8, while the normalization of the trend exhibits a weak evolution toward lower masses at higher redshift. We combine the {log}{M}<SUB>* </SUB>-M <SUB>UV</SUB> distribution with observed rest-frame UV luminosity functions at each redshift to derive the GSMFs, finding that the low-mass-end slope becomes steeper with increasing redshift from α =-{1.55}<SUB>-0.07</SUB><SUP>+0.08</SUP> at z = 4 to α =-{2.25}<SUB>-0.35</SUB><SUP>+0.72</SUP> at z = 8. The inferred stellar mass density, when integrated over {M}<SUB>* </SUB>={10}<SUP>8</SUP>-10<SUP>13</SUP> M <SUB>☉</SUB>, increases by a factor of {10}<SUB>-2</SUB><SUP>+30</SUP> between z = 7 and z = 4 and is in good agreement with the time integral of the cosmic star formation rate density. | en_US |
dc.language.iso | eng | en_US |
dc.title | The Evolution of the Galaxy Stellar Mass Function at z = 4-8: A Steepening Low-mass-end Slope with Increasing Redshift | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/0004-637X/825/1/5 | en_US |
dc.identifier.scopus | 2-s2.0-84978194621 | en_US |
dc.identifier.isi | 000381930000005 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/0004-637X/825/1/5 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 825 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 5 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTROPHYSICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2016ApJ...825....5S | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-5688-0663 | - |
crisitem.author.orcid | 0000-0003-3820-2823 | - |
crisitem.author.orcid | 0000-0001-6870-8900 | - |
crisitem.journal.journalissn | 0004-637X | - |
crisitem.journal.ance | E016252 | - |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
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File | Descrizione | Dimensioni | Formato | |
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1507.05636.pdf | preprint | 9.47 MB | Adobe PDF | Visualizza/apri |
Song_2016_ApJ_825_5.pdf | pdf editoriale | 5.85 MB | Adobe PDF | Visualizza/apri |
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