Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-23T15:54:53.900Z Has data issue: false hasContentIssue false
  • English
  • Français

Discovery of a recombination dominant plasma: a relic of a giant flare of Sgr A*?

Published online by Cambridge University Press:  22 May 2014

S. Nakashima ,
M. Nobukawa ,
H. Uchida ,
T. Tanaka ,
T. G. Tsuru ,
K. Koyama ,
H. Uchiyama  and
H. Murakami
S. Nakashima
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan email: [email protected]
M. Nobukawa
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan email: [email protected]
H. Uchida
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan email: [email protected]
T. Tanaka
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan email: [email protected]
T. G. Tsuru
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan email: [email protected]
K. Koyama
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan email: [email protected] Department of Earth and Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043
H. Uchiyama
Affiliation:
Science Education, Faculty of Education, Shizuoka University, 836 Ohya, Suruga-ku, Shizuoka 422-8529, Japan
H. Murakami
Affiliation:
Department of Information Science, Faculty of Liberal Arts, Tohoku Gakuin University 2-1-1 Tenjinzawa, Izumi-ku, Sendai, Miyagi 981-3193, Japan
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present the discovery of out-flow like plasma emissions with the Suzaku and ASCA data. Those plasmas have a size of ∼150 pc. Remarkably, the southern plasma is in a recombination dominant phase, which is not predicted by standard shock heating. A plausible scenario is either photoionization due to strong jet-like X-rays from Sgr A* or rapid cooling due to adiabatic expansion of a blowout plasma from the Galactic center about 105 years ago.

Keywords

Galaxy: center — X-rays: ISM — ISM: jets and outflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S303: The Galactic Center: Feeding and Feedback in a Normal Galactic Nucleus , October 2013 , pp. 349 - 353
Copyright
Copyright © International Astronomical Union 2014 

References

Gonzalez, O. A., Rejkuba, M., & Zoccali, M., et al. 2012, A&A 543, A13Google Scholar
Inui, T., Koyama, K., Matsumoto, H., & Tsuru, T. G. 2009, PASJ 61, S241Google Scholar
Mitsuda, K., Bautz, M., & Inoue, H., et al. 2007, PASJ 59, S1Google Scholar
Nakashima, S., Nobukawa, M., & Uchida, H., et al. 2013, ApJ 773, 20Google Scholar
Ponti, G., Terrier, R., Goldwurm, A., Belanger, G., & Trap, G. 2010, ApJ 714, 732Google Scholar
Sawada, M. & Koyama, K. 2012, PASJ 64, 81Google Scholar
Su, M., Slatyer, T. R., & Finkbeiner, D. P. 2010, ApJ 724, 1044Google Scholar
Tanaka, Y., Inoue, H., & Holt, S. S. 1994, PASJ 46, L37Google Scholar
Uchida, H., Koyama, K., & Yamaguchi, H., et al. 2012, PASJ 64, 141Google Scholar
Yamauchi, S., Nobukawa, M., Koyama, K., & Yonemori, M. 2013, PASJ 65, 6CrossRefGoogle Scholar