X-ray and Radio Variability of M31*

Details X-ray and Radio Variability of M31* X-ray and Radio Variability of M31*

Mar 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008head...10.2610g&link_type=abstract

American Astronomical Society, HEAD meeting #10, #26.10

Astronomy and Astrophysics

Astronomy

Scientific paper

M31* is the next nearest SMBH after Sgr A*, and in some ways may be superior to Sgr A* as a tool to understand accretion in quiescent SMBH. We report on Chandra HRC imaging which resolves the 4 arc-sec Bondi radius, and shows variable X-ray emission at the location of M31* and also at the location of the brightest part of the double nucleus, P1. The most rapid X-ray variability we detect from M31* occurs on a 50ks timescale, which (scaled for the 30x higher mass) is commensurate with the most rapid variability seen from Sgr A*. The results of simultaneous VLA monitoring will also be presented.

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