VLA studies of X-ray selected BL Lacertae objects
Abstract
Observations of 13 X-ray selected BL Lacertae objects (X-BL Lacs) from the HEAO-1 Large Area Sky Survey have been obtained with the Very Large Array. These X-BL Lacs are Fanaroff-Riley I radio sources, and are less core-dominated than traditional radio selected BL Lacs (R-BL Lacs). The radio properties are consistent with a ``unified scheme'' connecting BL Lacs with FR I radio galaxies, where X-BL Lacs are oriented at larger angles to the line-of-sight than R-BL Lacs. However, the X-ray emission does not appear to be as strongly relativistically beamed as the radio and may be completely unbeamed.
- Publication:
-
Testing the AGN paradigm
- Pub Date:
- May 1992
- DOI:
- 10.1063/1.42273
- Bibcode:
- 1992AIPC..254..463K
- Keywords:
-
- Bl Lacertae Objects;
- Extragalactic Radio Sources;
- Radio Galaxies;
- Sky Surveys (Astronomy);
- Very Large Array (Vla);
- X Ray Astronomy;
- Heao 1;
- Line Of Sight;
- Relativistic Effects;
- Rosat Mission;
- Astrophysics;
- 98.50.Vr;
- 95.85.Bh;
- 95.85.Nv;
- 98.60.Gi;
- Radio microwave;
- X-ray;
- BL LACERTAE OBJECTS;
- EXTRAGALACTIC RADIO SOURCES;
- RADIO GALAXIES;
- SKY SURVEYS (ASTRONOMY);
- VERY LARGE ARRAY (VLA);
- X RAY ASTRONOMY;
- HEAO 1;
- LINE OF SIGHT;
- RELATIVISTIC EFFECTS;
- ROSAT MISSION