| タイトル | A luminous companion to SGR 1806-20 |
| 著者（英） | Matthews, K.; Van Kerkwijk, M. H.; Kulkarni, S. R.; Neugebauer, G. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1995-05-01 |
| 言語 | eng |
| 内容記述 | We have obtained infrared spectra of the star suggested to be the counterpart of the soft gamma-ray repeater (SGR) 1806-20. We found strong emission lines similar to those seen in the spectra of the rare luminous blue variables and B(e) stars. A He I absorption line is also seen, from which we infer a spectral type O9-B2. This classification, in combination with the minimum distance of greater than or approximately = 6 kpc inferred from its extinction, makes the star one of the most luminous in the Galaxy. We infer that it is a companion to SGR 1806-20 and suggest that the presence of a companion is somehow related to the SGR phenomenon. |
| NASA分類 | ASTRONOMY |
| レポートNO | 95A87427 |
| 権利 | Copyright |
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