Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-03-27
Astronomy and Astrophysics
Astrophysics
7 pages, 3 figures; accepted for publication in MNRAS
Scientific paper
10.1111/j.1365-2966.2006.10376.x
Allowing for the conical shape of ultrarelativistic blazar jets with opening angles of a few degrees on parsec-scales we show that their bulk Lorentz factors and viewing angles can be much larger than the values usually inferred by combining their flux variability and proper motion measurements. This is in accord with our earlier finding that such ultrarelativistic (Lorentz factor, Gamma > 30) conical jets can reconcile the relatively slow apparent motions of VLBI knots in TeV blazars with the extremely fast flows implied by their rapid gamma-ray variability. This jet geometry also implies that de-projected jet opening angles will typically be significantly underestimated from VLBI measurements. In addition, de-projected jet lengths will be considerably overestimated if high Lorentz factors and significant opening angles are not taken into account.
Dhurde Samir
Gopal-Krishna
Wiita Paul J.
No associations
LandOfFree
Bulk Motion of Ultrarelativistic Conical Blazar Jets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Bulk Motion of Ultrarelativistic Conical Blazar Jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulk Motion of Ultrarelativistic Conical Blazar Jets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-412985