Trojan Stars in the Galactic Center

Details Trojan Stars in the Galactic Center Trojan Stars in the Galactic Center

2008-07-17

arxiv.org/abs/0807.2818v2

Astrophys.J.695:1421-1429,2009

Astronomy and Astrophysics

Astrophysics

17 pages, 9 figures, accepted for publication in ApJ

Scientific paper

10.1088/0004-637X/695/2/1421

We performed, for the first time, the simulation of spiral-in of a star cluster formed close to the Galactic center (GC) using a fully self-consistent $N$-body model. In our model, the central super-massive black hole (SMBH) is surrounded by stars and the star cluster. Not only are the orbits of stars and the cluster stars integrated self-consistently, but the stellar evolution, collisions and merging of the cluster stars are also included. We found that an intermediate-mass black hole (IMBH) is formed in the star cluster and stars escaped from the cluster are captured into a 1:1 mean motion resonance with the IMBH. These "Trojan" stars are brought close to the SMBH by the IMBH, which spirals into the GC due to the dynamical friction. Our results show that, once the IMBH is formed, it brings the massive stars to the vicinity of the central SMBH even after the star cluster itself is disrupted. Stars carried by the IMBH form a disk similar to the observed disks and the core of the cluster including the IMBH has properties similar to those of IRS13E, which is a compact assembly of several young stars.

Affiliated with

Also associated with

No associations

Rating

Trojan Stars in the Galactic Center 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 Trojan Stars in the Galactic Center, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Trojan Stars in the Galactic Center will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-42673