A deep ASCA observation of the Ultra-luminosity Infra-red galaxy Mrk 231

Details A deep ASCA observation of the Ultra-luminosity Infra-red galaxy Mrk 231 A deep ASCA observation of the Ultra-luminosity Infra-red galaxy Mrk 231

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000head....5.0202r&link_type=abstract

American Astronomical Society, HEAD Meeting #5, #02.02; Bulletin of the American Astronomical Society, Vol. 32, p.1182

Astronomy and Astrophysics

Astronomy

Scientific paper

We have obtained a moderately long ASCA observation of the Ultra-luminous infra-red galaxy Mrk 231, the most luminous object in the local (z<0.1) universe. The most plausible explanation for the resulting hard X-ray spectrum is that we are seeing a deeply buried active nucleus through X-ray reflection and scattering. We estimate the intrinsic X-ray luminosity of the AGN and find that it is approximately 2% of the bolometric luminosity. Thus, it seems likely that a deeply buried quasar powers a significant fraction, if not all, of the observed bolometric luminosity.

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