Are there multiple gamma-ray emission sites in blazars?
Abstract
We present an investigation of parsec-scale jet morphology evolution in the blazar 3C 279 during an episode of extreme flaring activity at GeV energies in 2014 using 43 GHz VLBI jet images. The study made use of Pass 8 Fermi/LAT and 43 GHz VLBI data. The primary goal is to explore the total intensity and polarization properties and their connection with the broadband flux variations observed during a bright gamma-ray activity phase of the source. We noticed two different modes of high-energy emission; one acoompained by simultaneous ejection of a component (plasma blob) and another followed by the ejection of a component from the core. Our study supports multiple sites of gamma-ray emission in 3C 279.
- Publication:
-
AAS/High Energy Astrophysics Division #16
- Pub Date:
- August 2017
- Bibcode:
- 2017HEAD...1610614R