Accretion models of Sgr A*

Details Accretion models of Sgr A* Accretion models of Sgr A*

2006-07-07

arxiv.org/abs/astro-ph/0607123v1

Astronomy and Astrophysics

Astrophysics

9 pages, 6 figures; invited talk presented at the "Galactic Center Workshop 2006: From the Center of the Milky Way to Nearby L

Scientific paper

10.1088/1742-6596/54/1/067

The supermassive black hole in the center of our Galaxy, Sgr A*, is unique because the angular size of the black hole is the largest in the sky thus providing detailed boundary conditions on, and much less freedom for, accretion flow models. In this paper I review advection-dominated accretion flow (ADAF; another name is radiatively inefficient accretion flow) models for Sgr A*. This includes the developments and dynamics of ADAFs, and how to explain observational results including the multi-waveband spectrum, radio polarization, IR and X-ray flares, and the size measurements at radio wavebands.

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