Clustering properties of rest-frame UV-selected galaxies. II. Migration of star formation sites with cosmic time from Galex and CFHTLS

Sébastien Heinis, Bruno Milliard, Stéphane Arnouts, Jérémy Blaizot, David Schiminovich, Tamás Budavári, Olivier Ilbert, José Donas, Marie Treyer, Ted K. Wyder, Henry J. McCracken, Tom A. Barlow, Karl Forster, Peter G. Friedman, D. Christopher Martin, Patrick Morrissey, Susan G. Neff, Mark Seibert, Todd Small, Luciana BianchiTimothy M. Heckman, Young Wook Lee, Barry F. Madore, R. Michael Rich, Alex S. Szalay, Barry Y. Welsh, Sukyoung K. Yi, C. K. Xu

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

We analyze the clustering properties of ultraviolet-selected galaxies by using GALEX-SDSS data at z < 0.6 and CFHTLS deep u′ imaging at z ∼ 1. These data sets provide a unique basis at z ≤ 1 which can be directly compared with high-redshift samples built with similar selection criteria. We discuss the dependence of the correlation function parameters (r0, and δ) on the ultraviolet luminosity, as well as the linear bias evolution. We find that the bias parameter shows a gradual decline from high (b8 ≳ 2) to low redshift (b8 ≃ 0.79 -0.08+0.1). When accounting for the fraction of the star formation activity enclosed in the different samples, our results suggest that the bulk of star formation migrated from high-mass dark matter halos at z > 2 (1012 M ≤ Mmin ≤ 1013 M, located in high-density regions) to less massive halos at low redshift (Mmin ≤ 1012 M, located in low-density regions). This result extends the "downsizing" picture (shift of the star formation activity from high stellar mass systems at high z to low stellar mass at low z) to the dark matter distribution.

Original languageEnglish
Pages (from-to)503-511
Number of pages9
JournalAstrophysical Journal, Supplement Series
Volume173
Issue number2
DOIs
Publication statusPublished - 2007 Dec 1

Fingerprint

stellar mass
star formation
galaxies
halos
dark matter
shift
distribution

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Heinis, Sébastien ; Milliard, Bruno ; Arnouts, Stéphane ; Blaizot, Jérémy ; Schiminovich, David ; Budavári, Tamás ; Ilbert, Olivier ; Donas, José ; Treyer, Marie ; Wyder, Ted K. ; McCracken, Henry J. ; Barlow, Tom A. ; Forster, Karl ; Friedman, Peter G. ; Christopher Martin, D. ; Morrissey, Patrick ; Neff, Susan G. ; Seibert, Mark ; Small, Todd ; Bianchi, Luciana ; Heckman, Timothy M. ; Lee, Young Wook ; Madore, Barry F. ; Michael Rich, R. ; Szalay, Alex S. ; Welsh, Barry Y. ; Yi, Sukyoung K. ; Xu, C. K. / Clustering properties of rest-frame UV-selected galaxies. II. Migration of star formation sites with cosmic time from Galex and CFHTLS. In: Astrophysical Journal, Supplement Series. 2007 ; Vol. 173, No. 2. pp. 503-511.
@article{e9c89265dfa44ba48d6e8f4d20775119,
title = "Clustering properties of rest-frame UV-selected galaxies. II. Migration of star formation sites with cosmic time from Galex and CFHTLS",
abstract = "We analyze the clustering properties of ultraviolet-selected galaxies by using GALEX-SDSS data at z < 0.6 and CFHTLS deep u′ imaging at z ∼ 1. These data sets provide a unique basis at z ≤ 1 which can be directly compared with high-redshift samples built with similar selection criteria. We discuss the dependence of the correlation function parameters (r0, and δ) on the ultraviolet luminosity, as well as the linear bias evolution. We find that the bias parameter shows a gradual decline from high (b8 ≳ 2) to low redshift (b8 ≃ 0.79 -0.08+0.1). When accounting for the fraction of the star formation activity enclosed in the different samples, our results suggest that the bulk of star formation migrated from high-mass dark matter halos at z > 2 (1012 M⊙ ≤ Mmin ≤ 1013 M⊙, located in high-density regions) to less massive halos at low redshift (Mmin ≤ 1012 M⊙, located in low-density regions). This result extends the {"}downsizing{"} picture (shift of the star formation activity from high stellar mass systems at high z to low stellar mass at low z) to the dark matter distribution.",
author = "S{\'e}bastien Heinis and Bruno Milliard and St{\'e}phane Arnouts and J{\'e}r{\'e}my Blaizot and David Schiminovich and Tam{\'a}s Budav{\'a}ri and Olivier Ilbert and Jos{\'e} Donas and Marie Treyer and Wyder, {Ted K.} and McCracken, {Henry J.} and Barlow, {Tom A.} and Karl Forster and Friedman, {Peter G.} and {Christopher Martin}, D. and Patrick Morrissey and Neff, {Susan G.} and Mark Seibert and Todd Small and Luciana Bianchi and Heckman, {Timothy M.} and Lee, {Young Wook} and Madore, {Barry F.} and {Michael Rich}, R. and Szalay, {Alex S.} and Welsh, {Barry Y.} and Yi, {Sukyoung K.} and Xu, {C. K.}",
year = "2007",
month = "12",
day = "1",
doi = "10.1086/520580",
language = "English",
volume = "173",
pages = "503--511",
journal = "Astrophysical Journal, Supplement Series",
issn = "0067-0049",
publisher = "IOP Publishing Ltd.",
number = "2",

}

Heinis, S, Milliard, B, Arnouts, S, Blaizot, J, Schiminovich, D, Budavári, T, Ilbert, O, Donas, J, Treyer, M, Wyder, TK, McCracken, HJ, Barlow, TA, Forster, K, Friedman, PG, Christopher Martin, D, Morrissey, P, Neff, SG, Seibert, M, Small, T, Bianchi, L, Heckman, TM, Lee, YW, Madore, BF, Michael Rich, R, Szalay, AS, Welsh, BY, Yi, SK & Xu, CK 2007, 'Clustering properties of rest-frame UV-selected galaxies. II. Migration of star formation sites with cosmic time from Galex and CFHTLS', Astrophysical Journal, Supplement Series, vol. 173, no. 2, pp. 503-511. https://doi.org/10.1086/520580

Clustering properties of rest-frame UV-selected galaxies. II. Migration of star formation sites with cosmic time from Galex and CFHTLS. / Heinis, Sébastien; Milliard, Bruno; Arnouts, Stéphane; Blaizot, Jérémy; Schiminovich, David; Budavári, Tamás; Ilbert, Olivier; Donas, José; Treyer, Marie; Wyder, Ted K.; McCracken, Henry J.; Barlow, Tom A.; Forster, Karl; Friedman, Peter G.; Christopher Martin, D.; Morrissey, Patrick; Neff, Susan G.; Seibert, Mark; Small, Todd; Bianchi, Luciana; Heckman, Timothy M.; Lee, Young Wook; Madore, Barry F.; Michael Rich, R.; Szalay, Alex S.; Welsh, Barry Y.; Yi, Sukyoung K.; Xu, C. K.

In: Astrophysical Journal, Supplement Series, Vol. 173, No. 2, 01.12.2007, p. 503-511.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Clustering properties of rest-frame UV-selected galaxies. II. Migration of star formation sites with cosmic time from Galex and CFHTLS

AU - Heinis, Sébastien

AU - Milliard, Bruno

AU - Arnouts, Stéphane

AU - Blaizot, Jérémy

AU - Schiminovich, David

AU - Budavári, Tamás

AU - Ilbert, Olivier

AU - Donas, José

AU - Treyer, Marie

AU - Wyder, Ted K.

AU - McCracken, Henry J.

AU - Barlow, Tom A.

AU - Forster, Karl

AU - Friedman, Peter G.

AU - Christopher Martin, D.

AU - Morrissey, Patrick

AU - Neff, Susan G.

AU - Seibert, Mark

AU - Small, Todd

AU - Bianchi, Luciana

AU - Heckman, Timothy M.

AU - Lee, Young Wook

AU - Madore, Barry F.

AU - Michael Rich, R.

AU - Szalay, Alex S.

AU - Welsh, Barry Y.

AU - Yi, Sukyoung K.

AU - Xu, C. K.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - We analyze the clustering properties of ultraviolet-selected galaxies by using GALEX-SDSS data at z < 0.6 and CFHTLS deep u′ imaging at z ∼ 1. These data sets provide a unique basis at z ≤ 1 which can be directly compared with high-redshift samples built with similar selection criteria. We discuss the dependence of the correlation function parameters (r0, and δ) on the ultraviolet luminosity, as well as the linear bias evolution. We find that the bias parameter shows a gradual decline from high (b8 ≳ 2) to low redshift (b8 ≃ 0.79 -0.08+0.1). When accounting for the fraction of the star formation activity enclosed in the different samples, our results suggest that the bulk of star formation migrated from high-mass dark matter halos at z > 2 (1012 M⊙ ≤ Mmin ≤ 1013 M⊙, located in high-density regions) to less massive halos at low redshift (Mmin ≤ 1012 M⊙, located in low-density regions). This result extends the "downsizing" picture (shift of the star formation activity from high stellar mass systems at high z to low stellar mass at low z) to the dark matter distribution.

AB - We analyze the clustering properties of ultraviolet-selected galaxies by using GALEX-SDSS data at z < 0.6 and CFHTLS deep u′ imaging at z ∼ 1. These data sets provide a unique basis at z ≤ 1 which can be directly compared with high-redshift samples built with similar selection criteria. We discuss the dependence of the correlation function parameters (r0, and δ) on the ultraviolet luminosity, as well as the linear bias evolution. We find that the bias parameter shows a gradual decline from high (b8 ≳ 2) to low redshift (b8 ≃ 0.79 -0.08+0.1). When accounting for the fraction of the star formation activity enclosed in the different samples, our results suggest that the bulk of star formation migrated from high-mass dark matter halos at z > 2 (1012 M⊙ ≤ Mmin ≤ 1013 M⊙, located in high-density regions) to less massive halos at low redshift (Mmin ≤ 1012 M⊙, located in low-density regions). This result extends the "downsizing" picture (shift of the star formation activity from high stellar mass systems at high z to low stellar mass at low z) to the dark matter distribution.

UR - http://www.scopus.com/inward/record.url?scp=39449090146&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=39449090146&partnerID=8YFLogxK

U2 - 10.1086/520580

DO - 10.1086/520580

M3 - Article

AN - SCOPUS:39449090146

VL - 173

SP - 503

EP - 511

JO - Astrophysical Journal, Supplement Series

JF - Astrophysical Journal, Supplement Series

SN - 0067-0049

IS - 2

ER -