Assessing The Energetic Budget In The Ulirg Iras19254-7245: Preliminary Results From Suzaku Observation.
Abstract
We present preliminary results from the deep Suzaku observation of one of the brightest nearby Ultra Luminous Infrared Galaxies: IRAS 19254-7245 (otherwise know as the SuperAntenna).
Previous X-ray observation with XMM-Newton of IRAS 19254-7245 revealed the presence of a strong iron emission line and a flat continuum (Gamma 1.3), both strongly suggesting that this source hosts a Compton-thick AGN. In this scenario, the intrinsic 2-10 keV luminosity of IRAS 19254-7245 is greater than 1e44 erg/s, i.e. indicative of a buried QSO; a picture confirmed by our L-band infrared observation. However since no direct continuum is visible in the XMM-Newton band-pass, a direct measure of the intrinsic luminosity of the AGN hosted in this ULIRGs was not possible and the source luminosity could be derived only through indirect arguments. Here we present the results obtained with the first observation above 10 keV obtained for this ULIRG.- Publication:
-
American Astronomical Society Meeting Abstracts #210
- Pub Date:
- July 2007
- Bibcode:
- 2007AAS...21012103B