Winds from massive stars supply ∼10 -3 M⊙ yr -1 of gas to the central parsec of the Galactic center. I present spherically symmetric hydrodynamic simulations of the dynamics of this gas. These calculations show that a few percent of the gas, or ∼few o. 10 -5 M⊙ yr-1, flows in toward the central massive black hole Sgr A*; the remaining gas, ∼ 10-3 M⊙ yr-1, is thermally driven out of the central star cluster in a wind. This dynamical model accounts for the level of diffuse X-ray emission observed in the central 10" of the Galactic center by Chandra and the extended X-ray source coincident with Sgr A*; the latter is a signature of gas being gravitationally captured by the black hole.
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science
- Accretion disks
- Galaxy: center