Astronomy and Astrophysics – Astrophysics
Scientific paper
Jun 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011japa...32..239j&link_type=abstract
Journal of Astrophysics and Astronomy, Volume 32, Issue 1-2, pp. 239-242
Astronomy and Astrophysics
Astrophysics
1
Gamma-Rays, Quasars: 1633+382(4C+38.41), Radio Jets, Polarization, Gamma-Rays—Quasars: 1633+382(4C+38.41)—Radio Jets—Polarization.
Scientific paper
We perform monthly monitoring of the quasar 1633+382 (4C+38.41) within a sample of γ-ray blazars with the VLBA at 43 GHz along with optical photometric and polarimetric observations. We construct the γ-ray light curve of 1633+382 using data obtained by the Fermi LAT. We find that a high γ-ray state of the quasar starting in 2009 September is simultaneous with an increase of the flux in the mm-wave VLBI core. We resolve a superluminal feature on the VLBA images that appears to be responsible for the mm-wave flux increase. We find a strong correlation between optical and γ-ray light curves with a delay of γ-ray variations of 5±3 days, as well as a strong correlation between optical flux and degree of polarization during the high γ-ray state. Comparison between the optical polarization position angle and that in the VLBI core supports the idea that in the quasar 1633+382 a high γ-ray state is connected with processes originating near the mm-VLBI core.
Agudo Iv'an
Jorstad Svetlana G.
Lahteenmaki Anne
Larionov Valeri M.
Marscher Alan P.
No associations
LandOfFree
Multi-Frequency Observations of Gamma-Ray Blazar 1633+382 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 Multi-Frequency Observations of Gamma-Ray Blazar 1633+382, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-Frequency Observations of Gamma-Ray Blazar 1633+382 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-919196