The following is an excerpt from a paper presented at a Microquasar conference. This is an excerpt from the paper that discusses the Milky Way’s compact massive object Sgr A*. These observations seem to support the MECO mechanism.
http://arxiv.org/abs/astro-ph/0701837v1
Quote:
The black hole at the Galactic Center
European and American teams have been studying the kinematics of the central cluster of massive stars with the VLT and Keck respectively, where using adaptive optics at infrared wavelengths from the ground becomes competitive with space astronomy. Both teams reach similar results and estimate a black hole mass of 3 × 10^6 Solar mass. However, there are following puzzles:
1) How could a massive cluster of massive stars be formed and survive in a region of 10 light years radius from the supermassive black hole ?
2) Observing with the VLT, QPOs of about 15 min were reported. However, no such QPOs have been observed so far with Keck. In microquasars it is known that QPOs of maximum fix frequency are only observed sporadically but not permanently. Could the presence and absence of these QPOs be due to chance ?
3) The flares in Sgr A∗ exhibit similar time delays between the X-rays, infrared and radio wavelengths as observed in the flares of GRS 1915+105 (Figure 4 central panel). These time delays are comparable, irrespective of the mass of the black holes which indicates that the radiating plasma has detached from the gravitational field of the black hole.
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There are other papers written about the cluster of very short life (100Myr) OB stars that have formed 10 light years from the Milky Way’s super massive black hole. The mass of the stars found in the cluster would have required a cloud of gas with density found on the surface of a star. There is a basic mass problem, if the OB stars formed in that location from a gas cloud. I am looking for a MECO related mechanism that could explain the observation. I will provide a link to a paper that discusses the theoretical mass balance issue to explain the OB stars in that location.