Yoshida, A.,
Namiki, M.,
Otani, C.,
河合 誠之,
Murakami, T.,
Ueda, Y.,
Shibata, R.,
Uno, S..
英文:
Yoshida, A.,
Namiki, M.,
Otani, C.,
Kawai, N.,
Murakami, T.,
Ueda, Y.,
Shibata, R.,
Uno, S..
言語
English
掲載誌/書名
和文:
英文:
Astronomy and Astrophysics Supplement Series
巻, 号, ページ
Vol. 138
pp. 433-434
出版年月
1999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 ASCA/ satellite made a quick followup observation of GRB 970828 and detected its fading X-ray afterglow at the position localized by the All-Sky Monitor on the Rossi XTE satellite. Because of the quickness, the afterglow was still rather bright ( ~ 4\ 10(-13) ergs cm(-2) s(-1) : 2-10 keV), and ASCA obtained the data of good quality. We found the spectral features of the absorption which implies a column density of 4.1\ 10(21) cm(-2) at z=0, together with an emission line at ~ 5 keV. The line could be red shifted Fe K_α line. Hence, it suggests a relatively small red shift z ~ 0.33 for this GRB.
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