Journal
ASTROPHYSICAL JOURNAL
Volume 589, Issue 2, Pages 783-789Publisher
IOP PUBLISHING LTD
DOI: 10.1086/374738
Keywords
galaxies : active; galaxies : individual (M32); galaxies : nuclei; radio continuum : galaxies; X-rays : galaxies
Categories
Ask authors/readers for more resources
M32 hosts a 2.5 x 10(6) M(circle dot) central black hole, but signs of nuclear activity in this galaxy have long eluded detection. We report the first conclusive detection of the nucleus of M32 in X-rays, based on high-resolution, sensitive observations made with Chandra. The 2-10 keV luminosity is merely 9.4 x 10(35) ergs s(-1), similar to3 x 10(-9) times the Eddington luminosity of the black hole. Weak diffuse emission, consistent with thermal gas at a temperature of 0.37 keV, is seen in an annular region similar to100 pc from the center. We also present a deep, moderately high-resolution (0.9) radio continuum observation obtained with the Very Large Array, which places a tight upper bound on the nuclear radio power at 8.4 GHz. We combine these new measurements with upper limits at other wavelengths to discuss implications for the nature of accretion onto the central black hole.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available