Angular clustering of z ∼ 2 star-forming and passive galaxies in 2.5 square degrees of deep CFHT imaging

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dc.creator Sato, Taro
dc.creator Sawicki, Marcin, 1969-
dc.creator Arcila-Osejo, Liz
dc.date.accessioned 2015-10-07T14:34:31Z
dc.date.available 2015-10-07T14:34:31Z
dc.date.issued 2014
dc.identifier.issn 1365-2966
dc.identifier.issn 0035-8711
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/26392
dc.description Publisher's version/PDF en_CA
dc.description.abstract We study the angular clustering of z ∼ 2 galaxies using ∼40 000 star-forming (SF) and ∼5000 passively evolving (PE) galaxies selected from ∼2.5 deg[superscript 2] of deep (K[subscript lim] = 23–24 AB) Canada–France–Hawaii Telescope imaging. For both populations, the clustering is stronger for galaxies brighter in rest-frame optical and the trend is particularly strong for PE galaxies, indicating that passive galaxies with larger stellar masses reside in more massive haloes. In contrast, at rest-frame ultraviolet we find that while the clustering of SF galaxies increases with increasing luminosity, it decreases for PE galaxies; a possible explanation lies in quenching of star formation in the most massive haloes. Furthermore, we find two components in the correlation functions for both SF and PE galaxies, attributable to one- and two-halo terms. The presence of one-halo terms for both PE and SF galaxies suggests that environmental effects were producing passive galaxies in virtualized environments already by z ∼ 2. Finally, we find notable clustering differences between the four widely separated fields in our study; the popular COSMOS field is the most discrepant (as is also the case for number counts and luminosity functions), highlighting the need for very large areas and multiple sightlines in galaxy evolution statistical studies. en_CA
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dc.language.iso en en_CA
dc.publisher Oxford University Press en_CA
dc.publisher Royal Astronomical Society
dc.relation.uri http://dx.doi.org/10.1093/mnras/stu1356
dc.rights This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
dc.subject.lcsh Galaxies -- Clusters
dc.subject.lcsh Cosmology
dc.subject.lcsh Stars -- Formation
dc.subject.lcsh Stars -- Populations
dc.subject.lcsh Galaxies -- Evolution
dc.title Angular clustering of z ∼ 2 star-forming and passive galaxies in 2.5 square degrees of deep CFHT imaging en_CA
dc.type Text en_CA
dcterms.bibliographicCitation Monthly Notices of the Royal Astronomical Society 443, 2661-2678. (2014) en_CA
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This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2014 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
 
Published Version: http://dx.doi.org/10.1093/mnras/stu1356
 
 

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