Evidence for Two Intermediate Mass Black Holes in M82

Details Evidence for Two Intermediate Mass Black Holes in M82 Evidence for Two Intermediate Mass Black Holes in M82

Feb 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010head...11.4218f&link_type=abstract

American Astronomical Society, HEAD meeting #11, #42.18; Bulletin of the American Astronomical Society, Vol. 41, p.728

Astronomy and Astrophysics

Astronomy

Scientific paper

M82 is a starburst galaxy that contains two of the most interesting ultraluminous X-ray sources (ULXs) in nearby galaxies, X41.4+60 and X42.3+59, which are suspected to be good candidates of intermediate mass black holes. Using three simultaneous Chandra and XMM-Newton observations, we report the firm identification of the thermal dominate state in X41.4+60; a nearly maximal spinning black hole of 200-800 solar masses is required to interpret the data. We also discovered mHz X-ray oscillations in X42.3+59, which suggests the presence of a black hole of a few 104 solar masses in the source.

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