Title: RADIATION MECHANISMS AND JET STRUCTURE OF BLAZARS

Title: RADIATION MECHANISMS AND JET STRUCTURE OF BLAZARS

Proposal ID: 0120184
Subject category: Extragalactic Object
Principal investigator: Moderski
Institute: Nicolaus Copernicus Astronomical Center

Abstract

We propose two $10^6$s observations of blazars PKS 0208-512 and 3C 454.3 (2251+158). The INTEGRAL will be able to determine spectrum shape for these objects up to several MeV. This will allow detailed study of the high energy component of the blazar spectrum. Such studies will provide information on contribution of various radiation mechanisms into overall spectrum and will put constraints on jet opening angle. We also plan simultaneous observations with XMM to determine possible lags between soft- and mid-X rays to support internal shock model for nonthermal flares produced in the jet.