Formation and Dynamics of Stellar Discs in the Galactic Center

Details Formation and Dynamics of Stellar Discs in the Galactic Center Formation and Dynamics of Stellar Discs in the Galactic Center

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..408..358c&link_type=abstract

The Starburst-AGN Connection. ASP Conference Series, Vol. 408, proceedings of the conference held 27-31 October 2008, at Shangha

Astronomy and Astrophysics

Astronomy

Scientific paper

We study the origin of the massive stars observed close to Sgr~A*. We argue that the stars were formed in a ˜ 10^4 M_&sun; accretion disc that existed around Sgr~A* in the past. We present a numerical study of star formation in a massive disc and show the influence of radiative cooling on the resulting mass function. Finally, we study the dynamical evolution of stellar discs and compare them with the Galactic center observed stellar dynamics. We find that an initial geometry more complicated than a single cold disc is needed to reproduce the data.

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