A long hard look at MCG-6-30-15 with XMM-Newton

被引:276
作者
Fabian, AC
Vaughan, S
Nandra, K
Iwasawa, K
Ballantyne, DR
Lee, JC
De Rosa, A
Turner, A
Young, AJ
机构
[1] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England
[2] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA
[3] MIT, Ctr Space Res, Cambridge, MA 02139 USA
[4] CNR, Ist Astrofis Spaziale, Rome, Italy
[5] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
关键词
galaxies : active; galaxies : general; galaxies : individual : MCG-6-30-15; galaxies : Seyfert; X-rays : galaxies;
D O I
10.1046/j.1365-8711.2002.05740.x
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the first results from a 325-ks observation of the Seyfert 1 galaxy MCG-6-30-15 with XMM-Newton and BeppoSAX. The strong, broad, skewed iron line is clearly detected and is well characterized by a steep emissivity profile within 6r(g) (i.e. 6GM/c(2)) and a flatter profile beyond. The inner radius of the emission appears to lie at about 2r(g), consistent with results reported from both an earlier XMM-Newton observation of MCG-6-30-15 by Wilms et al. and part of an ASCA observation by Iwasawa et al. when the source was in a lower flux state. The radius and steep emissivity profile do depend however on an assumed incident power-law continuum and a lack of complex absorption above 2.5 keV. The blue wing of the line profile is indented, either by absorption at about 6.7 keV or by a hydrogenic iron emission line. The broad iron line flux does not follow the continuum variations in a simple manner.
引用
收藏
页码:L1 / L5
页数:5
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