Interpretations of multiple absorption features in a gamma-ray burst spectrum
著者
和文:
Fenimore, E. E.,
Conner, J. P.,
Epstein, R. I.,
Klebesadel, R. W.,
Laros, J. G.,
Yoshida, A.,
Fujii, M.,
Hayashida, K.,
Itoh, M.,
Murakami, T.,
Nishimura, J.,
Yamagami, Y.,
Kondo, I.,
河合 誠之.
英文:
Fenimore, E. E.,
Conner, J. P.,
Epstein, R. I.,
Klebesadel, R. W.,
Laros, J. G.,
Yoshida, A.,
Fujii, M.,
Hayashida, K.,
Itoh, M.,
Murakami, T.,
Nishimura, J.,
Yamagami, Y.,
Kondo, I.,
Kawai, N..
言語
English
掲載誌/書名
和文:
英文:
Astrophysical Journal
巻, 号, ページ
Vol. 335
pp. L71-L74
出版年月
1988年12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 discovery reported by Mazets et al. in 1981 of single absorption lines at about 40 keV in the spectra of gamma-ray bursts observed by the Konus instrument implies magnetic fields ≡1012G and, hence, that the bursts occur on highly magnetized neutron stars. The authors report the detailed analysis of a burst (GB 880205) with double line features observed by the Ginga satellite. It is concluded that these lines are most reasonably interpreted as the first and second cyclotron harmonics in a magnetic field of ≡1.7×1012G with an electron column density of ≡3.6×1022cm-2. The narrowness of the absorption lines requires that they originate in a very cold, small area on the neutron star, probably distinct from the gamma-ray emitting region.
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