ar X iv : a st ro - p h / 99 03 37 5 v 1 2 4 M ar 1 99 9 SNRs in the Galactic Center region observed with ASCA

نویسندگان

  • M. Sakano
  • J. Yokogawa
  • H. Murakami
  • K. Koyama
  • Y. Maeda
چکیده

We report the ASCA results of the super-nova remnants (SNRs) and their candidates in the Galac-tic Center region. We found apparent X-ray emission from G359.1−0.5 and G0.9+0.1, and made marginal detection for G359.1+0.9, but found no significant X-ray from the other cataloged SNRs: G359. The emission from G359.1−0.5 is found to be thermal with multi temperature structures whereas that from G0.9+0.1 is quite hard, probably non-thermal. We discovered two new candidates of SNRs: G0.0−1.3 (AX J1751−29.6) and G0.56−0.01 (AX J1747.0−2828). The former, G0.0−1.3, shows the extended emission with a thin thermal plasma. The latter, G0.56−0.01, shows quite strong 6.7-keV line with the equivalent width of 2 keV, which resembles that of the Galactic Center plasma. We discuss the nature of those SNRs, relating with the origin of the Galactic Center hot plasma.

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تاریخ انتشار 1999