Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-04-21
Astrophys.J. 625 (2005) L111-L114
Astronomy and Astrophysics
Astrophysics
accepted by APJ
Scientific paper
10.1086/431307
The IRS 13E complex is an unusual concentration of massive, early-type stars at a projected distance of ~0.13 pc from the Milky Way's central supermassive black hole Sagittarius A* (Sgr A*). Because of their similar proper motion and their common nature as massive, young stars it has recently been suggested that IRS 13E may be the remnant of a massive stellar cluster containing an intermediate-mass black hole (IMBH) that binds its members gravitationally in the tidal field of Sgr A*. Here, we present an analysis of the proper motions in the IRS~13E environment that combines the currently best available data with a time line of 10 years. We find that an IMBH in IRS 13E must have a minimum mass of ~10^4 solar masses in order to bind the source complex gravitationally. This high mass limit in combination with the absence so far of compelling evidence for a non-thermal radio and X-ray source in IRS 13E make it appear unlikely that an IMBH exists in IRS 13E that is sufficiently massive to bind the system gravitationally.
Eckart Andreas
Genzel Reinhard
Iserlohe Christof
Ott Th.
Schoedel Rainer
No associations
LandOfFree
A Black Hole in the Galactic Center Complex IRS 13E? does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A Black Hole in the Galactic Center Complex IRS 13E?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Black Hole in the Galactic Center Complex IRS 13E? will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-316022