| タイトル | First detection of x-ray variability of eta carinae |
| 著者（英） | Corcoran, M. F.; Petre, R.; Swank, J. H.; Rawley, G. L. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1995-06-01 |
| 言語 | eng |
| 内容記述 | Recent ROSAT Position Sensitive Proportional Counter (PSPC) observations for the first time unequivocally reveal the presence of a compact source of hard X-ray emission centered on the peculiar star eta Car. These observations also show a dramatic change in the hard-band (E greater than 1.6 keV) counting rate by about a factor of 2 in a 4 month interval. Thus, strong variability, which is a characteristic of eta Car in radio through IR and visible-band wavelengths, is also observed at X-ray energies. The increase in hard X-ray emission could be the result of a tripling of the mass-loss rate in less than 4 months. |
| NASA分類 | ASTRONOMY |
| レポートNO | 95A87899 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/306866 |
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