Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995mnras.275.1146s&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Vol. 275, NO. 4/AUG15, P.1146, 1995
Astronomy and Astrophysics
Astronomy
19
Scientific paper
Multifrequency monitoring data between 375 and 22 GHz are used to investigate spectral evolution of radio outbursts in the blazar 0420-014. It is shown that, after subtraction of the underlying `quiescent' emission, the flare spectrum can be described by a simple homogeneous self-absorbed synchrotron component. The evolution of the spectrum is found to be qualitatively consistent with the shock model of Marscher and Gear, although not totally so in detail. Some of the discrepancies can possibly be resolved if the proposed relativistic jet, which is initially oriented close to the line-of-sight, bends away. The optically thin spectrum of the flare emission, however, is found to be flatter than allowed by the model. Strong correlations are found between the 9~22 GHz two point spectral index and the logarithm of the 90-GHz flux. These trends are reconciled with the evolution of the synchrotron spectrum during the flares.
Gear Walter K.
Litchfield S. J.
Robson Ian E.
Stevens Jason A.
Terasranta Harri
No associations
LandOfFree
The Spectral Evolution of High-Frequency Radio Outbursts in the Blazar PKS:0420-014 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 The Spectral Evolution of High-Frequency Radio Outbursts in the Blazar PKS:0420-014, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Spectral Evolution of High-Frequency Radio Outbursts in the Blazar PKS:0420-014 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272406