The X-ray spectral properties and variability of AGN in the Chandra/SWIRE Survey

被引：0
|
作者：
Molina, M. [1 ]
Polletta, M. [1 ]
Chiappetti, L. [1 ]
Paioro, L. [1 ]
Trinchieri, G. [2 ]
机构：
[1] INAF IASF Milano, Via E Bassini 15, I-20133 Milan, Italy
[2] INAF, Osservatorio Astron Brera, I-20121 Milan, Italy
来源：
X-RAY ASTRONOMY-2009: PRESENT STATUS, MULTI-WAVELENGTH APPROACH AND FUTURE PERSPECTIVES, PROCEEDINGS | 2010年 / 1248卷
关键词：
Active Galaxies; X-rays; Radio; Variability; Absorption;
D O I：
10.1063/1.3475308
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present the XMM-Newton sample in the Chandra/SWIRE field. We compare the recent XMM (2008-2009) and previous Chandra (2004) observations to identify a sub-sample of variable sources. We find that variability is independent of X-ray absorption and dust obscuration. The analysis of the radio fluxes reveals a significant fraction of radio-weak AGNs and a higher incidence of absorption among radio-loud sources. The source list and multi-wavelength catalogs in the Chandra/SWIRE field can be accessed through an on-line database.
引用
收藏
页码：477 / +
页数：2
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