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View Full Version : An intermediate mass black hole? maybe, maybe not...



trinitree88
2010-Aug-23, 05:52 PM
HLX1 is not conclusively identified as an intermediate mass black hole by virtue of it's X-ray data. SEE:http://arxiv.org/PS_cache/arxiv/pdf/1008/1008.3382v1.pdf

Tensor
2010-Aug-25, 02:46 AM
HLX1 is not conclusively identified as an intermediate mass black hole by virtue of it's X-ray data. SEE:http://arxiv.org/PS_cache/arxiv/pdf/1008/1008.3382v1.pdf

HLX1 is not conclusively identified as a black hole by Soria, Zampieri, Zane, and Wu, based on their interpretation of Swift observations. That claim, however, is rather weak, considering they only used X-ray frequencies (which is a given, since they are using Swift). That paper is intended to be a specific response to the reported discovery of HLX1 in 2009, and constrain the X-ray evidence of a IMBH. It is not intended to raise a question of HLX1 as an IMBH, based only on that evidence, as you seem to imply from the title of the thread. If you look at the paper of Farrell et al (2010) you will find that the case for the IMBH is stronger than the Neutron Star, as their interpretation is based on Radio, optical, IR, UV and X-ray frequencies. Although there are some questions on the UV evidence, which may be explained by the star formation in the area.