Title: TESTING THE EXTERNAL-RADIATION-COMPTON MODEL FOR BLAZARS
Proposal ID: 0120186
Subject category: Extragalactic Object
Principal investigator: SIKORA
Institute: Nicolaus Copernicus Astronomical Center
Abstract
We propose two $10^6$s exposures of blazars 0836+710 (4C +71.07) and
1510-089 (OR -017). Both sources are
bright and have very hard X-ray
spectrum. High quality data obtained by INTEGRAL will allow us to
determine
the primary Comptonization mechanism for these sources. We
also plan to look for the location of spectrum
softening in soft
$\gamma$-rays and for soft X-ray excess. This information is crucial
to accurately derive
parameters of models of blazars. Additional
observations with XMM and in UV are also planned.