BeppoSAX observations of PKS 0528+134
Abstract
We report on the BeppoSAX observations of the gamma-ray blazar PKS 0528+134 performed in Feb and Mar 1997, during a multiwavelength campaign involving EGRET and ground based telescopes. The source was in a faint and hard state, with energy spectral index alpha=0.48+-0.04 between 0.1 and 10 keV, and [2-10] keV flux of 2.7E-12 erg/cm2/s. No significant variability was observed. The source was detected in the 20-120 keV band by the PDS, with a flux lying slightly above the extrapolation from lower X-ray energies. Comparing this low state with previous higher states of the source, there is an indication that the X-ray spectrum hardens and the gamma-ray spectrum steepens when the source is fainter.
Keywords
Cite
@article{arxiv.astro-ph/9712285,
title = {BeppoSAX observations of PKS 0528+134},
author = {G. Ghisellini and G. Tagliaferri and L. Costamante and L. Maraschi and A. Celotti and G. Fossati and L. Bassani and M. Cappi and F. Frontera and E. Pian and A. Comastri and M. Cavallone and G. De Francesco and L. Lanteri and C. M. Raiteri and G. Sobrito and M. Villata and S. Giarrusso and B. Sacco and I. S. Glass and P. Grandi and E. Massaro and S. Molendi and P. Padovani and G. G. C. Palumbo and C. Perola and M. Salvati and A. Treves},
journal= {arXiv preprint arXiv:astro-ph/9712285},
year = {2015}
}
Comments
4 pages, LateX, 5 figures (included). Uses espcrc2.sty and epsf.sty (included). To appear in The Active X-ray Sky: Results from BeppoSAX and Rossi-XTE, Rome, Italy, 21-24 October, 1997. Eds.: L. Scarsi, H. Bradt, P. Giommi and F. Fiore