1 research outputs found
Chandra unveils a binary Active Galactic Nucleus in Mrk463
We analyse Chandra, XMM-Newton and HST data of the double-nucleus
Ultraluminous Infrared Galaxy (ULIRG), Mrk463. The Chandra detection of two
luminous ( and
erg cm s), unresolved nuclei in Mrk~463
indicates that this galaxy hosts a binary AGN, with a projected separation of
kpc ( arcsec). While the East nucleus was already
known to be a Seyfert 2 (and this is further confirmed by our Chandra detection
of a neutral iron line), this is the first unambiguous evidence in favour of
the AGN nature of the West nucleus. Mrk463 is therefore the clearest case so
far for a binary AGN, after NGC6240.Comment: 7 pages, 7 figures, accepted for publication in MNRA