Volume 377, Number 3, October III 2001
|Page(s)||L31 - L34|
|Published online||15 October 2001|
The complex iron line of NGC 5506
Dipartimento di Fisica, Università degli Studi Roma Tre, Via della Vasca Navale 84, 00146 Roma, Italy
2 XMM-Newton SOC, VILSPA-ESA, Apartado 50727, 28080 Madrid, Spain
3 Osservatorio Astronomico di Roma, Via dell'Osservatorio, 00044 Monteporzio Catone, Italy
4 Harvard-Smithsonian Center of Astrophysics, 60 Garden Street, Cambridge MA 02138, USA
5 Istituto Tecnologie e Studio Radiazioni Extraterrestri, CNR, Via Gobetti 101, 40129 Bologna, Italy
6 Istituto di Astrofisica Spaziale, C.N.R., Via Fosso del Cavaliere, 00133 Roma, Italy
Corresponding author: G. Matt, firstname.lastname@example.org
Accepted: 29 August 2001
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.
Key words: galaxies: individual: NGC 5506 / galaxies: Seyfert / X-rays: galaxies
© ESO, 2001
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