The Properties of Highly Luminous IRAS Galaxies
Abstract
From a complete sample of 154 galaxies identified with IRAS sources in a 304 sq deg area centered on the South Galactic Pole, a subsample of 58 galaxies with LIR/L sub B > 3 was chosen. Low resolution spectra were obtained for 30% of the subsample and redshifts and relative emission line intensities were derived. As a class these galaxies are very luminous with < LIR > = 2.9 x 10 to the 11th power L0 and (LIR) max = 1.3 x 10 to the 12th power L0. CCD images and JHK photometry were obtained for many of the subsample. The galaxies are for the most part newly identified and are optically faint, with a majority showing evidence of a recent interaction. Radio continuum observations of all galaxies of the subsample were recently obtained at 20 cm VLA with about 75% being detected in a typical integration time of about 10 minutes.
- Publication:
-
NASA Conference Publication
- Pub Date:
- May 1987
- Bibcode:
- 1987NASCP2466..623W
- Keywords:
-
- Astronomical Maps;
- Line Spectra;
- Red Shift;
- Stellar Luminosity;
- Stellar Spectra;
- Faint Objects;
- Infrared Astronomy Satellite;
- Infrared Photometry;
- Radio Emission;
- Astrophysics