An XMM-Newton observation of the narrow-line Seyfert 1 galaxy Markarian 896

被引：13

作者：

Page, KL ^{[1
]}

O'Brien, PT

Reeves, JN

Breeveld, AA

机构：

[1] Univ Leicester, Dept Phys & Astron, Xray & Observ Astron Grp, Leicester LE1 7RH, Leics, England

[2] UCL, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

来源：

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2003年 / 340卷 / 03期

关键词：

galaxies : active; galaxies : individual : Markarian 896; galaxies : Seyfert; X-rays : galaxies;

D O I：

10.1046/j.1365-8711.2003.06403.x

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present XMM-Newton observations of the narrow-line Seyfert 1 galaxy Markarian 896. Over the 2-10 keV band, an iron emission line, close to 6.4 keV, is seen. The line is just resolved and has an equivalent width of similar to170 eV. The broad-band spectrum is well modelled by a power-law slope of Gammasimilar to 2.03, together with two blackbody components to fit the soft X-ray excess. Using a more physical two-temperature Comptonization model, a good fit is obtained for an input photon distribution of kT similar to 60 eV and Comptonizing electron temperatures of similar to0.3 and 200 keV. The soft excess cannot be explained purely through the reprocessing of a hard X-ray continuum by an ionized disc reflector.

引用

页码：1052 / 1056

页数：5

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