Parsec-scale Jet Behavior Of The Quasar 3c273 During The High Gamma-ray State In 2009-2010

Details Parsec-scale Jet Behavior Of The Quasar 3c273 During The High Gamma-ray State In 2009-2010 Parsec-scale Jet Behavior Of The Quasar 3c273 During The High Gamma-ray State In 2009-2010

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011head...12.0702j&link_type=abstract

American Astronomical Society, HEAD meeting #12, #7.02

Astronomy and Astrophysics

Astronomy

Scientific paper

We analyze total and polarized intensity images of the quasar 3C273 obtained at 43 GHz monthly during 2008-2010 within the Boston U. monitoring program of gamma-ray blazars with the VLBA. We find a strong increase of activity in the parsec-scale jet of the quasar during a high gamma-ray state lasting from 2009 June to 2010 May that features an increase of the total and polarized flux in the mm-wave core and the appearance of superluminal knots in the jets. Although the optical variability is low, owing to strong contamination by the big blue bump, we observe a significant increase in the degree of optical polarization, by a factor of 3, that coincides with a gamma-ray flare in 2010 April. We discuss the locations in the jet where high gamma-ray fluxes occur. These include stationary features in the jet flow that we identify with standing shocks.
This research was supported in part by NASA grants NNX08AV65G, NNX08AV61G, NNX09AT99G, and NNX09AU10G, and NSF grant AST-0907893. The VLBA is an instrument of the National Radio Astronomy Observatory, a facility of the NSF, operated under cooperative agreement by Associated Universities, Inc.

Affiliated with

Also associated with

No associations

Rating

Parsec-scale Jet Behavior Of The Quasar 3c273 During The High Gamma-ray State In 2009-2010 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 Parsec-scale Jet Behavior Of The Quasar 3c273 During The High Gamma-ray State In 2009-2010, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parsec-scale Jet Behavior Of The Quasar 3c273 During The High Gamma-ray State In 2009-2010 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1402181