期刊
PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
卷 66, 期 1, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/pasj/pst003
关键词
Galaxy: center; Galaxy: nucleus; methods: numerical
资金
- SPIRE
- Grants-in-Aid for Scientific Research [25707010, 23654068, 24540268] Funding Source: KAKEN
A compact gas cloud G2 is predicted to reach the pericenter of its orbit around the supermassive black hole (SMBH) of our Galaxy, Sagittarius A*. This event will give us a rare opportunity to observe the interaction between the SMBH and the gas around it. We report on the result of a fully three-dimensional simulation of the evolution of G2 during the first pericenter passage. The strong tidal force from the SMBH stretches the cloud along its orbit, and strongly compresses it in the vertical direction, resulting in its heating up and flaring up. The bolometric luminosity will reach a maximum of similar to 100 L-circle dot. This flare should be easily observed in the near-IR.
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