Clues to the origin of parsec to kilo-parsec jet misalignments in EGRET sources
Abstract
The apparent position angle difference Delta PA between parsec and kilo-parsec jets in blazars can be related to the bending properties of the jets. We present correlations between the misalignment Delta PA and the ratio of radio to broad-line emission for a sample of gamma -ray blazars. The present study is limited to EGRET sources due to uniform data for the radio and optical properties of these sources being easily available. The broad-line emission is known to be a good indicator of the accretion power for both steep and flat-spectrum quasars. We find significant correlations between Delta PA and the ratio of radio flux (total and radio core flux respectively) to broad-line flux, which is consistent with the beaming scenario. A weak correlation between Delta PA and the ratio of extended radio to broad-line flux might imply that the intrinsic bend of the jet is related with the ratio of jet mechanical power to accretion power.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 2000
- DOI:
- 10.48550/arXiv.astro-ph/0001168
- arXiv:
- arXiv:astro-ph/0001168
- Bibcode:
- 2000A&A...355...44C
- Keywords:
-
- GALAXIES: ACTIVE;
- GALAXIES: JETS;
- GALAXIES: QUASARS: EMISSION LINES;
- Astrophysics
- E-Print:
- 7 pages, accepted for publication in A&