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Accretion models of Sgr A*

2006/07/07 by Feng Yuan
Materials Science · Physics and Astronomy · #Astrophysical Phenomena and Observations #Chemical and Physical Properties of Materials #Polymer Nanocomposite Synthesis and Irradiation #astro-ph

paper · pdf · doi:10.1088/1742-6596/54/1/067

9 pages, 6 figures; invited talk presented at the "Galactic Center Workshop 2006: From the Center of the Milky Way to Nearby Low-Luminosity Galactic Nuclei", April 18-22, 2006; Bad Honnef, Germany

arxiv created 2006/07/07 · openalex publication_date 2006/12/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30

Abstract

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 fbw models. In this paper I review advection-dominated accretion fbw (ADAF; another name is radiatively inefficient accretion fbw) models for Sgr A*. This includes the dynamics and developments of ADAFs, and how to explain observational results including the multi-waveband spectrum, radio polarization, IR, and X-ray fares, and the size measurements at radio wavebands.

Citations