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ASCA Observations of the SgrA Region

Published online by Cambridge University Press:  25 May 2016

Y. Maeda ,
K. Koyama ,
H. Murakami ,
M. Sakano ,
K. Ebisawa ,
T. Takeshima  and
S. Yamauchi
Y. Maeda
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-01, Japan
K. Koyama
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-01, Japan
H. Murakami
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-01, Japan
M. Sakano
Affiliation:
Department of Physics, Graduate School of Science, Kyoto University, Sakyo-ku, Kyoto, 606-01, Japan
K. Ebisawa
Affiliation:
Laboratory for High Energy Astrophysics, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
T. Takeshima
Affiliation:
Laboratory for High Energy Astrophysics, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
S. Yamauchi
Affiliation:
Faculty of Humanities and Social Sciences, Iwate University, 3-18-34, Ueda, Morioka, Iwate, 020, Japan

Extract

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The complex radio source Sgr A is embedded in a region near our Galactic Center. The dynamical center of our Galaxy is considered to be Sgr A*, the compact non-thermal radio source. Dynamical mass within ~0.1 pc from Sgr A* has been estimated to be ~ 3×106 M⊙. This places Sgr A* to be a candidate of a massive blackhole (Eckart and Genzel, 1997 and reference therein).

Type
Session 3: Diagnostics of High Gravity Objects with X- and Gamma Rays
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 352 - 353
Copyright
Copyright © Kluwer 1998 

References

Eckart, A. and Genzel, R. 1997, MNRAS , 284, 576 Google Scholar
Kennea, J.A. and Skinner, G.K. 1996, PASJ , 48, L117 Google Scholar
Koyama, K., Maeda, Y., Sonobe, T., Takeshima, T., Tanaka, Y., and Yamauchi, S. 1996, PASJ , 48, 249 Google Scholar
Maeda, Y., Koyama, K., Sakano, M., Takeshima, Y., and Yamauchi, S. 1996, PASJ , 48, 417 CrossRefGoogle Scholar