A Chandra observation of the H2O megamaser IC2560

Details A Chandra observation of the H2O megamaser IC2560 A Chandra observation of the H2O megamaser IC2560

2002-09-12

arxiv.org/abs/astro-ph/0209245v1

Mon.Not.Roy.Astron.Soc.336:L71,2002

Astronomy and Astrophysics

Astrophysics

5 pages, MNRAS in press

Scientific paper

10.1046/j.1365-8711.2002.06070.x

A short Chandra ACIS-S observation of the Seyfert 2 galaxy IC 2560, which hosts a luminous nuclear water megamaser, shows: 1) the X-ray emission is extended; 2) the X-ray spectrum shows emission features in the soft (E<2 keV) X-ray band; this is the major component of the extended emission; and 3) a very strong (EW~3.6 keV) iron K line at 6.4 keV on a flat continuum. This last feature clearly indicates that the X-ray source is hidden behind Compton-thick obscuration, so that the intrinsic hard X-ray luminosity must be much higher than observed, probably close to ~3e42 erg/s. We briefly discuss the implications for powering of the maser emission and the central source.

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