The complex iron line of NGC 5506

Citation
G. Matt et al., The complex iron line of NGC 5506, ASTRON ASTR, 377(3), 2001, pp. L31-L34
Citations number
33
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY & ASTROPHYSICS
ISSN journal
14320746 → ACNP
Volume
377
Issue
3
Year of publication
2001
Pages
L31 - L34
Database
ISI
SICI code
1432-0746(200110)377:3<L31:TCILON>2.0.ZU;2-P
Abstract
The bright Narrow Emission Line Galaxy, NGC 5506, has been observed simulta neously by XMM-Newton and BeppoSAX. The iron line is complex, with at least two components: one narrow and corresponding to neutral iron, the second o ne 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 emi tted 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 matt er seems to be preferable to emission from an ionized, relativistic accreti on disc.