NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-05-27 T04:31:25 PDT
Help | Comment | NED Home

For refcode 1998ApJS..119...41K:
Retrieve 118 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by American Astronomical Society. Reproduced by permission
1998ApJS..119...41K The IRAS 1 Jy Survey of Ultraluminous Infrared Galaxies. I. The Sample and Luminosity Function D.-C. KIM AND D. B. SANDERS Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 Received 1998 January 12; accepted 1998 June 15 ABSTRACT A complete flux-limited sample of 118 ultraluminous infrared galaxies (ULIGs) has been identified from the IRAS Faint Source Catalog (FSC). The selection criteria were a 60 micron flux density greater than 1 Jy in a region of the sky {delta} > -400, |b| > 300. All sources were subsequently reprocessed using co-added IRAS maps in order to obtain the best available flux estimates in all four IRAS wavelength bands. The maximum observed infrared luminosity is L_ir_ = 10^12.90^ L_sun_, and the maximum redshift is z = 0.268. The luminosity function for ULIGs over the decade luminosity range L_ir_ = 10^12^-10^13^ L_sun_ can be approximated by a power law {PHI}(L) is proportional to L^-2.35^[Mpc^-3^ mag^-1^]. In the local universe (z <~ 0.1), the space density of ULIGs appears to be comparable to or slightly larger than that of optically selected QSOs at comparable bolometric luminosities. A maximum likelihood test suggests strong evolution for our sample; assuming density evolution proportional to (1 + z){alpha} we find {alpha} = 7.6 +/- 3.2. Examination of the two-point correlation function shows a barely significant level of clustering, {xi}(r) = 1.6 +/- 1.2, on size scales r ~ 22 h^-1^ Mpc. Subject headings: galaxies: clusters:general - galaxies:evolution - galaxies:luminosity function, mass function-infrared galaxies-surveys
Retrieve 118 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home