The complex iron line of NGC 5506

被引：49

作者：

Matt, G

Guainazzi, M

Perola, GC

Fiore, F

Nicastro, F

Cappi, M

Piro, L

机构：

[1] Univ Roma Tre, Dipartimento Fis, I-00146 Rome, Italy

[2] ESA, VILSPA, XMM Newton SOC, Madrid 28080, Spain

[3] Osserv Astron Roma, I-00044 Frascati, Italy

[4] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[5] CNR, Ist Tecnol & Studio Radiaz Extraterrestri, I-40129 Bologna, Italy

[6] CNR, Ist Astrofis Spaziale, I-00133 Rome, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 377卷 / 03期

关键词：

galaxies : individual : NGC 5506; galaxies : Seyfert; X-rays : galaxies;

D O I：

10.1051/0004-6361:20011209

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The bright Narrow Emission Line Galaxy, NGC 5506, has been observed simultaneously by XMM-Newton and BeppoSAX. The iron line is complex, with at least two components: one narrow and corresponding to neutral iron, the second one broad and corresponding to ionized iron. The latter line is equally well fitted by a truly broad line or by a blend of He- and H-like narrow lines. The bulk of the Compton reflection continuum originates in neutral matter, and is therefore associated with the narrow line: they are most likely emitted in distant matter. The origin of the ionized line(s) is less certain, but the solution in terms of a blend of narrow lines from photoionized matter seems to be preferable to emission from an ionized, relativistic accretion disc.

引用

页码：L31 / L34

页数：4

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