| タイトル | On fast X-ray rotators with long-term periodicities |
| 著者（英） | Elsner, R. F.; Naranan, S.; Hardee, P. E.; Sutherland, P. G.; Williams, A. C.; Darbro, W.; Weisskopf, M. C.; Ramsey, B. D.; Grindlay, J. E.; Leahy, D. A. |
| 著者所属（英） | NASA Marshall Space Flight Center|Alabama Univ.|McMaster Univ.|Harvard-Smithsonian Center for Astrophysics |
| 発行日 | 1985-03-15 |
| 言語 | eng |
| 内容記述 | The support of previous SAS 3 spacecraft observations by new data gathered by the Monitor Proportional Counter aboard the HEAO 2 spacecraft indicates that the pulse period history of the 13.5 sec-pulsing X-ray source LMC X-4 is consistent with standard accretion and torque models only if LMC X-4 is a fast rotator for which the accretion torques nearly cancel. This result leads to a neutron star magnetic field strength estimate of about 1.2 x 10 to the 13th G. Strong evidence is noted for Her X-1's status as a fast rotator, while SMC X-1 is probably an intermediate-to-fast rotator. In the context of slaved disk models for these objects, it is noted that the precession periods expected for the companion stars are significantly longer than the observed 1-2 month time scales; slaved disk models are thereby undermined. |
| NASA分類 | ASTROPHYSICS |
| レポートNO | 85A30887 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/391984 |
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