Evolution of G2 during the Close Encounter with Sgr A*
This animation movie was made with Zindaiji.
Flaring up of the Compact Cloud G2 during the Close Encounter with Sgr A*Authors: Takayuki Saitoh1, Junichiro Makino1,2, Yoshiharu Asaki3, Junichi Baba1, Shinya Komugi4, Makoto Miyoshi4, Tohru Nagao5, Masaaki Takahashi6, Takaaki Takeda4,7, Masato Tsuboi3, & Ken-ichi Wakamatsu81 Tokyo Institute of Technology 2 RIKEN, Advanced Institute for Computational Science 3 Japan Aerospace Exploration Agency 4 National Astronomical Observatory of Japan 5 Kyoto University 6 Aichi University of Education 7 VASA Entertainment 8 Gifu University Link to Astro-ph & ADS Abstract: A compact gas cloud G2 is predicted to reach the pericenter of its orbit around the super massive black hole (SMBH) of our galaxy, Sagittarius A* (Sgr A*). This event will give us a rare opportunity to observe the interaction between SMBH and gas around it. We report the result of the fully three-dimensional simulation of the evolution of G2 during the first pericenter passage. The strong tidal force by the SMBH stretches the cloud along its orbit, and compresses it strongly in the vertical direction, resulting in the heating up and flaring up of the cloud. The bolometric luminosity will reach the maximum of ~100 L☉. This flare should be easily observed in the near infrared. Accepted for publication in PASJ (6th Aug, 2013). The manuscript is here. Movies |
Evolution of G2 during the Close Encounter with Sgr A*This animation movie was made with Zindaiji. |
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Stereograms |
Stereograms of G2 during the Close Encoutner. The close-eyed view is adopted.These stereograms were made with Zindaiji. |
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