BeppoSAX对PKS 0528+134的观测
天体物理学
2015-06-24 v1
摘要
我们报告了在1997年2月至3月进行的BeppoSAX对伽马射线天体PKS 0528+134的观测，该观测是围绕EGRET和地面望远镜组织的多波段行动的一部分。该源处于微弱且硬状态，在0.1至10 keV范围内的能谱指数为alpha=0.48+-0.04，[2-10] keV能流为2.7E-12 erg/cm2/s。未观察到显著的变率。该源在20-120 keV波段被PDS探测到，其能流略高于来自较低X射线能量的外推值。将本低状态与该源的以往较高状态进行比较，表明当该源较弱时，X射线谱会变硬，而伽马射线谱则变得更陡峭。
引用
@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}
}
备注
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