The extragalactic nature of the serendipitous BeppoSAX source 2MASX J14585116-1652223

Details The extragalactic nature of the serendipitous BeppoSAX source 2MASX J14585116-1652223 The extragalactic nature of the serendipitous BeppoSAX source 2MASX J14585116-1652223

2005-09-28

arxiv.org/abs/astro-ph/0509841v1

Astronomy and Astrophysics

Astrophysics

9 pages, 2 figures, 2 tables. Accepted for publication on New Astronomy

Scientific paper

10.1016/j.newast.2005.09.003

As a follow-up of the X-ray serendipitous detection of the source 2MASX J14585116-1652223, medium-resolution optical spectroscopic observations collected at the 1.5-metre "Cassini" telescope of the Astronomical Observatory of Bologna were performed. This allowed us to determine the extragalactic nature of this X-ray source, which is a Type 2 Seyfert galaxy at redshift z = 0.068 +- 0.001. This result points to the fact that 2MASX J14585116-1652223 hosts one of the very few Active Galactic Nuclei detected so far in the hard X-ray band above 20 keV, in particular at z > 0.05. Other optical and X-ray properties of this object are also discussed.

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