Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-12-17
Astrophys.J. 601 (2004) L155-L158
Astronomy and Astrophysics
Astrophysics
13 pages, 3 figures. Accepted to ApJL
Scientific paper
10.1086/382043
We build a stellar-dynamical model of the Milky Way barred bulge and disk, using a newly implemented adaptive particle method. The underlying mass model has been previously shown to match the Galactic near-infrared surface brightness as well as gas-kinematic observations. Here we show that the new stellar-dynamical model also matches the observed stellar kinematics in several bulge fields, and that its distribution of microlensing event timescales reproduces the observed timescale distribution of the {\it MACHO} experiment with a reasonable stellar mass function. The model is therefore an excellent basis for further studies of the Milky Way. We also predict the observational consequences of this mass function for parallax shifted events.
Bissantz Nicolai
Debattista Victor P.
Gerhard Ortwin
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