CaltechAUTHORS
Published December 2007 | Version Published
Journal Article Open

Clustering Properties of Rest-Frame UV-Selected Galaxies. I. the Correlation Length Derived from GALEX Data in the Local Universe

Creators

  • 1. ROR icon Laboratoire d'Astrophysique de Marseille
  • 2. ROR icon Johns Hopkins University
  • 3. ROR icon Max Planck Institute for Astrophysics
  • 4. ROR icon Columbia University
  • 5. ROR icon California Institute of Technology
  • 6. ROR icon Goddard Space Flight Center
  • 7. ROR icon Yonsei University
  • 8. ROR icon Carnegie Observatories
  • 9. ROR icon University of California, Los Angeles
  • 10. ROR icon University of California, Berkeley

Abstract

We present the first measurements of the angular correlation function of galaxies selected in the far (1530 Å) and near (2310 Å) ultraviolet from the GALEX survey fields overlapping SDSS DR5 in low Galactic extinction regions. The area used covers 120 deg^2 (GALEX Medium Imaging Survey) down to magnitude AB = 22, yielding a total of 100,000 galaxies. The mean correlation length is ~3.7 ± 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 antibiasing of star-forming galaxies at low redshift and brings an additional clue to the downsizing of star formation at z < 1.

Additional Information

© 2007 The American Astronomical Society. Received 2006 August 22; accepted 2007 October 16. It is with great pleasure that we thank Jean-Michel Deharveng for support and discussions. GALEX (Galaxy Evolution Explorer) is a NASA Small Explorer, launched in 2003 April. We gratefully acknowledge NASA's support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d'Etudes Spatiales of France and the Korean Ministry of Science and Technology.

Attached Files

Published - MILapjss07.pdf

Files

MILapjss07.pdf

Files (655.2 kB)

Name Size Download all
md5:930480e195677dd3a2bc98bbd223beee
655.2 kB Preview Download

Additional details

Identifiers

Eprint ID
17451
Resolver ID
CaltechAUTHORS:20100211-100214164

Funding

NASA

Dates

Created
2010-02-16
Created from EPrint's datestamp field
Updated
2021-11-08
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Space Radiation Laboratory, Space Astrophysics Laboratory