Sign on

SAO/NASA ADS Astronomy Abstract Service


· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:0712.0033)
· References in the article
· Citations to the Article (7) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (11)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
The Environment on a Few Mpc Scales of Infrared Luminous Galaxies at Redshift z~1
Authors:
Marcillac, D.; Rieke, G. H.; Papovich, C.; Willmer, C. N. A.; Weiner, B. J.; Coil, A. L.; Cooper, M. C.; Gerke, B. F.; Woo, J.; Newman, J. A.; Georgakakis, A.; Laird, E. S.; Nandra, K.; Fazio, G. G.; Huang, J.-S.; Koo, D. C.
Affiliation:
AA(Steward Observatory, University of Arizona, Tucson, AZ 85721.), AB(Steward Observatory, University of Arizona, Tucson, AZ 85721.), AC(Steward Observatory, University of Arizona, Tucson, AZ 85721.; Spitzer Fellow.), AD(Steward Observatory, University of Arizona, Tucson, AZ 85721.), AE(Steward Observatory, University of Arizona, Tucson, AZ 85721.), AF(Steward Observatory, University of Arizona, Tucson, AZ 85721.; Hubble Fellow.), AG(Steward Observatory, University of Arizona, Tucson, AZ 85721.; Spitzer Fellow.; Department of Astronomy, University of California, Berkeley, CA 94720-3411.), AH(Department of Astronomy, University of California, Berkeley, CA 94720-3411.), AI(Racah Institute of Physics, The Hebrew University, Jerusalem, Israel.), AJ(Hubble Fellow.; Institute for Nuclear and Particle Astrophysics, Lawrence Berkeley National Laboratory, Berkeley, CA 94720.), AK(Astrophysics Group, Blackett Laboratory, Imperial College, London SW7 2BZ, UK.), AL(Astrophysics Group, Blackett Laboratory, Imperial College, London SW7 2BZ, UK.), AM(Astrophysics Group, Blackett Laboratory, Imperial College, London SW7 2BZ, UK.), AN(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138.), AO(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138.), AP(Department of Astronomy and Astrophysics, University of California Observatories/Lick Observatory, University of California, Santa Cruz, CA 95064.)
Publication:
The Astrophysical Journal, Volume 675, Issue 2, pp. 1156-1170. (ApJ Homepage)
Publication Date:
03/2008
Origin:
UCP
ApJ Keywords:
Galaxies: Evolution, Galaxies: General, Galaxies: Interactions, Galaxies: Starburst, Infrared: Galaxies
DOI:
10.1086/527031
Bibliographic Code:
2008ApJ...675.1156M

Abstract

We investigate the environment of infrared-luminous galaxies [LIR(8-1000 μm)>1011 Lsolar]. We focus on the redshift range 0.7<=z<=1, where these galaxies dominate the star formation activity and play a significant role in galaxy evolution. We employ MIPS 24 μm data to identify infrared galaxies in the Extended Groth Strip (EGS). We use a local density indicator to probe the environment on a few Mpc scales and a group member catalog, both of which make use of the DEEP2 spectroscopic redshift catalog, to quantify the environment of these galaxies. We find that the local environment of LIRGs and ULIRGs is intermediate between that of blue and red galaxies. LIRGs and ULIRGs avoid underdense environments and inhabit local environments that are more dense on average than those of other DEEP2 galaxies at similar redshifts. However, when the comparison sample of the non-IR DEEP2 galaxies is restricted to have the same range of stellar mass, color, or luminosity as the IR galaxies, there is no longer any significant difference in environment: the IR galaxies follow the same trends in the color-environment and luminosity-environment relations observed at z~1. We also find that about 30% of the LIRGs and ULIRGs belong to groups, associated with a minimum dark matter halo of 6×1012 Msolar h-1. The group members constitute 20% of the sources responsible for the IR star formation rate density and comoving energy density at z~1.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints