Quasar Jet Acceleration

Details Quasar Jet Acceleration Quasar Jet Acceleration

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aps..tsf.b4002p&link_type=abstract

American Physical Society, Joint Fall 2009 Meeting of the Texas Sections of the APS, AAPT, and SPS Postdeadline, October 22-24,

Physics

Scientific paper

We observed radio jets in six lobe-dominated quasars (LDQs) from 1995 to 2008 using the NRAO VLBA at 8.4 and 15 GHz. These observations have tracked jet component positions and velocities over that time period. There is a correlation between apparent jet speed and projected core distance in these LDQs at greater than 99 per cent confidence levels (Hough 2008, Extragalactic Jets, eds: Rector and DeYoung, ASP, p. 274). Four of our sources show this effect particularly strongly. We only tracked single jet components over relatively short distances, but the assumption of a unique velocity profile allows us to study component motion on an effective timescale of approximately 20-50 years. Results for 3C207 and 3C263 show a good fit using a constant acceleration model. The cause of such acceleration is still unknown, though ``magnetic acceleration'' by a gradient in magnetic field pressure is one possibility.

Affiliated with

Also associated with

No associations

Rating

Quasar Jet Acceleration 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 Quasar Jet Acceleration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quasar Jet Acceleration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-805911