A Search for an X-Ray Counterpart to the Extremely Bright 1993 January 31 Gamma-Ray Burst
著者
和文:
Shibata, R.,
Murakami, T.,
Ueda, Y.,
Yoshida, A.,
Tokanai, F.,
Otani, C.,
河合 誠之,
Hurley, K..
英文:
Shibata, R.,
Murakami, T.,
Ueda, Y.,
Yoshida, A.,
Tokanai, F.,
Otani, C.,
Kawai, N.,
Hurley, K..
言語
English
掲載誌/書名
和文:
英文:
Astrophysical Journal
巻, 号, ページ
Vol. 486
pp. 938
出版年月
1997年9月
出版者
和文:
英文:
会議名称
和文:
英文:
開催地
和文:
英文:
アブストラクト
The classical gamma-ray burst of 1993 January 31 (GRB 930131) is the highest peak flux burst ever recorded with CGRO/BATSE. It was also observed by other satellites. Its position was determined to within a narrow annulus by the Third Interplanetary Network (IPN). We searched for an X-ray counterpart to this bright burst with ASCA on 1996 January 9, and detected one X-ray source in the IPN annulus. Its position coincides with an X-ray source found with ROSAT, which had been identified with the normal F-type star HR 4657. The flux and spectrum obtained with ASCA are consistent with those for an F-type star, and we confirm that the detected X-ray emission comes from HR 4657. Although this source is in the IPN annulus, the high chance probability of finding an X-ray source in the annulus does not justify the association of it with GRB 930131. We discuss whether or not this X-ray source is associated with GRB 930131.
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