Is Every Quasar Beamed?
Abstract
A companion paper (Barthel et al.) reports the discovery of superluminal motion in the core of 4C 34.47, the largest known quasi-stellar radio source. Superluminal motion, the apparent continuity of small- and large-scale one-sided radio jets, and the recently established depolarization asymmetry in luminous quasars find a natural explanation in the effects of relativistic beaming. In the framework of this relativistic beaming model the available data imply that all radio-loud quasars are beamed toward us. Powerful radio galaxies may well form the unbeamed parent population. Radio-quiet QSOs and powerful infrared galaxies can be unified using similar orientation effects.
- Publication:
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The Astrophysical Journal
- Pub Date:
- January 1989
- DOI:
- Bibcode:
- 1989ApJ...336..606B
- Keywords:
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- Quasars;
- Radio Jets (Astronomy);
- Relativistic Electron Beams;
- Continuous Radiation;
- Interacting Galaxies;
- Radio Galaxies;
- Red Shift;
- Astrophysics;
- QUASARS;
- RADIO SOURCES: GENERAL