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YUAN Feng, ZHAO Jun-Hui. The Structure and Variability of Sagittarius A:Zooming into the Supermassive Black Hole at the Galactic Center[J]. Publications of the Yunnan Observatory, 2003, (1): 41-54.
Citation: YUAN Feng, ZHAO Jun-Hui. The Structure and Variability of Sagittarius A:Zooming into the Supermassive Black Hole at the Galactic Center[J]. Publications of the Yunnan Observatory, 2003, (1): 41-54.
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The Structure and Variability of Sagittarius A:Zooming into the Supermassive Black Hole at the Galactic Center

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  • The Galactic center provides a unique astrophysical laboratory for us to study various astrophysical processes.In this paper, we review and outline the latest results from observations of Sgr A in terms of source structure and variations in flux density.Sgr A phenomenon represents a typical case of low radiative efficiency accretion flow surrounding a supermassive black hole in low luminosity AGNs. Many pending astrophysical problems found from observations of Sgr A have challenged the existing astrophysical theories.Current theoretical models of Sgr A are also reviewed.
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