A Black Hole in the Galactic Center Complex IRS 13E

摘要: The IRS 13E complex is an unusual concentration of massive, early-type stars at a projected distance ~0.13 pc from the Milky Way's central supermassive black hole Sagittarius A* (Sgr A*). Because their similar proper motion and common nature as young stars, it has recently been suggested that may be remnant massive stellar cluster containing intermediate-mass (IMBH) binds its members gravitationally in tidal field Sgr A*. Here, we present analysis motions environment combines currently best available data with time line 10 years. We find IMBH must have minimum mass ~104 M☉ order to bind source gravitationally. This high-mass limit combination absence so far compelling evidence for nonthermal radio X-ray make appear unlikely exists sufficiently system