| タイトル | X-ray emission from the PSR B1259-63 system near apastron |
| 著者（英） | Belloni, T.; Greiner, J.; Tavani, M. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 1995-03-01 |
| 言語 | eng |
| 内容記述 | The PSR B1259-63 system contains a 47 ms radio pulsar in a highly eccentric binary with a Be-star companion. Strongly time-variable X-ray emission was reported from this system as the pulsar was near apastron in 1992- early 1993. The variability was primarily deduced from an apparent nondetection of the PSR B1259-63 system during a first preapastron ROSAT observation in 1992 February. We have reanalyzed the ROSAT observations of the PSR B1259-63 system. Contrary to the results of a previous analysis, we find that the PSR B1259-63 system was detected by ROSAT during the first off-axis 1992 February observation. The intensity of the soft X-ray emission of the PSR B1259-63 system before and after the 1992 apastron appears to vary at most by a factor of approx. 2. Our results sensibly constrain theoretical models of X-ray emission from the PSR B1259-63 system. |
| NASA分類 | ASTRONOMY |
| レポートNO | 95A79495 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/308046 |
