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Issue A&A
Volume 445, Number 1, January I 2006
Page(s) L5 - L8
Section Letters
DOI http://dx.doi.org/10.1051/0004-6361:200500214



A&A 445, L5-L8 (2006)
DOI: 10.1051/0004-6361:200500214

Letter

A prominent relativistic iron line in the Seyfert 1 MCG-02-14-009

D. Porquet

Max-Plank-Institut für extraterrestrische Physik, Postfach 1312, 85741, Garching, Germany
    e-mail: dporquet@mpe.mpg.de

(Received 26 August 2005 / Accepted 8 November 2005)

Abstract
I report the discovery of a prominent broad and asymmetrical feature near 6.4 keV in the Seyfert 1 MCG-02-14-009 (z=0.028) with XMM-Newton/EPIC. The present short X-ray observation (PN net exposure time ~5 ks) is the first one above 2 keV for MCG-02-14-009. The feature can be explained by either a relativistic iron line around either a Schwarzschild (non-rotating) or a Kerr (rotating) black hole. If the feature is a relativistic iron line around a Schwarzschild black hole, the line energy is 6.51 +0.21-0.12 keV with an equivalent width of 631 +259-243 eV and that the inclination angle of the accretion disc should be less than 43$^{\circ}$. A relativistically blurred photoionized disc model gives a very good spectral fit over the broad band 0.2-12 keV energy range. The spectrum is reflection dominated and this would indicate that the primary source in MCG-02-14-009 is located very close to the black hole, where gravitational light bending effect is important (about 3-4 $R_{\rm g}$), and that the black hole may rapidly rotate.


Key words: galaxies: active -- X-rays: galaxies -- accretion discs -- quasars: individual: MCG-02-14-009

SIMBAD Objects



© ESO 2005


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