Submitted by Astro-ph Robot on Thu, 10/18/2012 - 20:47
"A variable ultraluminous X-ray source in a globular cluster in NGC 4649."T.P. Roberts,
G. Fabbiano,
B. Luo,
D.-W. Kim,
J. Strader,
M.J. Middleton,
J.P. Brodie,
T. Fragos,
J.S. Gallagher,
V. Kalogera,
A.R. King,
A. Zezas.