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Clustering Properties of restframe UV selected galaxies I: the correlation length derived from GALEX data in the local Universe

Authors :
Ted K. Wyder
Timothy M. Heckman
Tom A. Barlow
Susan G. Neff
Luciana Bianchi
Todd Small
R. Michael Rich
Young-Wook Lee
Michel Laget
Karl Forster
Bruno Milliard
Sebastien Heinis
Alexander S. Szalay
Patrick Morrissey
Jeremy Blaizot
Barry F. Madore
Barry Y. Welsh
Sukyoung K. Yi
Tamás Budavári
Marie Treyer
David Schiminovich
M. Viton
Stephane Arnouts
Mark Seibert
Peter G. Friedman
Jose Donas
D. Christopher Martin
C. K. Xu
Beaussier, Catherine
Laboratoire d'Astrophysique de Marseille (LAM)
Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)
Publication Year :
2007
Publisher :
HAL CCSD, 2007.

Abstract

We present the first measurements of the angular correlation function of galaxies selected in the far (1530 A) and near (2310 A) Ultraviolet from the GALEX survey fields overlapping SDSS DR5 in low galactic extinction regions. The area used covers 120 sqdeg (GALEX - MIS) down to magnitude AB = 22, yielding a total of 100,000 galaxies. The mean correlation length is ~ 3.7 \pm 0.6 Mpc and no significant trend is seen for this value as a function of the limiting apparent magnitude or between the GALEX bands. This estimate is close to that found from samples of blue galaxies in the local universe selected in the visible, and similar to that derived at z ~ 3 for LBGs with similar rest frame selection criteria. This result supports models that predict anti-biasing of star forming galaxies at low redshift, and brings an additional clue to the downsizing of star formation at z<br />Accepted for publication in GALEX Special ApJs, December 2007

Details

Language :
English
Database :
OpenAIRE
Accession number :
edsair.doi.dedup.....7d9a143a4e473736e23c420dc068f580