Quasars near companion galaxies and the problem of the absolute magnitudes of quasars
Abstract
Recent observations of quasars associated with low-redshift galaxies are discussed, and the possibility of there existing more than one class of quasars is investigated based on a comparison of the absolute magnitudes of associated quasars and nonassociated quasars with cosmological redshifts. Associations of quasars with companion galaxies in the vicinities of large galaxies discovered since 1976 are presented, and the probabilities of these associations being due to chance are calculated to range from 0.01 to 0.001. The case of M 82 is then cited as a clear example of the ejection of three quasars from an exploding galaxy, and the observations of Stockton (1978) of nonstellar objects in the vicinity of 27 low-redshift quasars are discussed. Calculations of associated quasar redshifts based on parent galaxy distance moduli are presented which reveal most quasars associated with companion galaxies to have redshifts between 0.6 and 1.4 or 1.8 and 2.1. A hypothesis that certain quasars represent the ejection of faint, high-intrinsic-redshift compact objects from nearby galaxies is proposed.
- Publication:
-
Ninth Texas Symposium on Relativistic Astrophysics
- Pub Date:
- February 1980
- DOI:
- 10.1111/j.1749-6632.1980.tb15921.x
- Bibcode:
- 1980NYASA.336...94A
- Keywords:
-
- Galaxies;
- Quasars;
- Stellar Magnitude;
- Stellar Spectrophotometry;
- Astronomical Photography;
- Radio Astronomy;
- Red Shift;
- Astrophysics