1998•arXiv (Cornell University)Open access
Extreme Synchrotron Blazars in Outburst: the Potentiality of INTEGRAL\n Imaging and Spectroscopy
E. Pian, G. Malaguti, L. Maraschi, G. Ghisellini, G. G. C. Palumbo
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Abstract
Only ~10 blazars have been detected in soft gamma-rays by OSSE and the PDS,\noften in flaring state. We investigate the impact of the imaging and spectral\ncapabilities of the IBIS instrument on board INTEGRAL on the study of blazars.\nThe objectives are: 1) to remove ambiguities in the identification of some\nblazars as soft gamma-ray emitters; 2) to determine the spectral shape of\n"extreme synchrotron" blazars, namely sources with high F_X/F_radio ratios, for\nwhich the synchrotron component peaks at far UV-soft X-ray frequencies. We\nexpect that in these sources the synchrotron peak shifts to higher energies\nduring outbursts, making them strong soft gamma-ray emitters, and therefore\npossible targets for INTEGRAL wide band X- and gamma-ray spectroscopy.\n
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