A redshift survey of IRAS galaxies. I. Sample selection
- 1. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA)
- 2. New York State Univ., Stony Brook (USA)
- 3. California Univ., Berkeley (USA)
Description
A complete all-sky sample of objects, flux-limited at 60 microns, has been extracted from the data base of the IRAS. The sample consists of 5014 objects, of which 2649 are galaxies and 13 are not yet identified. In order to study large-scale structure with this sample, it must be free of systematic biases. Corrections are applied for a major systematic effect in the flux densities listed in the IRAS Point Source Catalog: sources resolved by the IRAS beam have flux densities systematically underestimated. In addition, accurate flux densities are obtained for sources flagged as variable, or of moderate flux quality at 60 microns. The IRAS detectors suffered radiation-induced responsivity enhancement (hysteresis) due to crossings of the satellite scans across the Galactic plane; this effect is measured and is shown to be negligible. 53 refs
Additional details
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 361
- Series
- Astrophys. J.
- Journal Page Range
- 49-62
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22014378
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- FLUX DENSITY; GALAXIES; HYSTERESIS; INFRARED RADIATION; POINT SOURCES; RADIATION FLUX; RED SHIFT; SAMPLING
- Descriptors DEC
- ELECTROMAGNETIC RADIATION; RADIATION SOURCES; RADIATIONS