The Parsec-scale Jets of Extragalactic TeV Gamma-ray Sources
Abstract
We present results of VLBI monitoring observations of the blazars detected by ground-based TeV gamma-ray telescopes. Preliminary results have shown that the apparent speeds of the parsec-scale jet features in these sources are predominantly subluminal, and significantly slower than those in the GeV-peaked (EGRET) gamma-ray blazars. Here we add results from additional sources and additional epochs that increase the statistical significance of this comparison. These slower speeds may indicate rapid deceleration of the jets in TeV blazars between the TeV gamma-ray emitting scales and VLBI scales.
- Publication:
-
Publications of the Astronomical Society of Australia
- Pub Date:
- 2002
- DOI:
- 10.1071/AS01114
- Bibcode:
- 2002PASA...19..114P
- Keywords:
-
- BL Lacertae objects: individual (Mrk 501;
- 1ES 1959+650;
- PKS 2155-304;
- 1ES 2344+514);
- galaxies: active;
- galaxies: jets;
- radio continuum: galaxies;
- radiation mechanisms: non-thermal