半人马座X-3
| 观测资料 历元 J2000 | |
|---|---|
| 星座 | 半人马座 |
| 星官 | |
| 赤经 | 11h 21m 15.78s[1] |
| 赤纬 | –60° 37′ 22.7″[1] |
| 视星等（V） | 13.25[2] |
| 特性 | |
| 光谱分类 | O6-7 II-III[3] |
| 变星类型 | Ellipsoidal[4] & eclipsing[5] |
| 天体测定 | |
| 距离 | 18.6 ± 4.9 kly（5.7 ± 1.5 kpc）[6] ly |
| 详细资料 | |
| 克热明斯基恒星 | |
| 质量 | 20.5 ± 0.7[6] M☉ |
| 半径 | 12[6] R☉ |
| 亮度 | 316,000[4] L☉ |
| 温度 | 39,000[7] K |
| X-ray component | |
| 质量 | 1.21 ± 0.21[6] M☉ |
| 其他命名 | |
| 参考数据库 | |
| SIMBAD | 资料 |
半人马座X-3（Centaurus X-3，缩写为Cen X-3），（4U 1118-60）是X射线脉冲星，周期为4.84秒。 这是在半人马座星座中被发现的第一个X射线脉冲星，也是第三个被发现的X射线源。该系统由一颗中子星绕着一个巨大的O型超巨星型恒星运行，该恒星被称为克热明斯基星(Krzeminski)的恒星，以其发现者波兰的天文学家沃伊切赫·克热明斯基名字命名。物质从恒星被吸积到中子星上，导致X射线发射。
历史
半人马座X-3位于半人马座方向，是第一个发现具有X射线脉冲的X射线源，后被确认为一颗低质量X射线双星。半人马座X-3最早是在1967年发现的[8]，1971年乌呼鲁卫星观测到它具有规则的脉冲，周期为4.84秒，同时每隔2.087天脉冲就中断将近12个小时[9]。这表明它是一颗X射线双星，X射线脉冲是由双星系统中中子星发出的，同时因两子星相互绕转而发生周期性的掩食。
系统
半人马座X-3距离太阳约8,000秒差距[10]，是一颗典型的低质量X射线双星。它的主星是一颗20.5倍太阳质量的超巨星（克热明斯基星，Krzeminski's star），伴星是一颗1.21倍太阳质量的中子星[11]，光度约为1038erg/s[12]。
参阅
参考文献
- ^ 1.0 1.1 Fuhrmeister, B.; Schmitt, J. H. M. M., A systematic study of X-ray variability in the ROSAT all-sky survey, Astronomy and Astrophysics, 2003, 403: 247–260, Bibcode:2003A&A...403..247F, arXiv:astro-ph/0303106
, doi:10.1051/0004-6361:20030303
- ^ Samus', N. N.; et al, An Electronic Version of the Second Volume of the General Catalogue of Variable Stars with Improved Coordinates, Astronomy Letters, July 2003, 29 (7): 468–479, Bibcode:2003AstL...29..468S, doi:10.1134/1.1589864
- ^ Ash, T. D. C.; Reynolds, A. P.; Roche, P.; Norton, A. J.; Still, M. D.; Morales-Rueda, L. The mass of the neutron star in Centaurus X-3. Monthly Notices of the Royal Astronomical Society. 1999, 307 (2): 357. Bibcode:1999MNRAS.307..357A. doi:10.1046/j.1365-8711.1999.02605.x .
- ^ 4.0 4.1 Tjemkes, S. A.; Van Paradijs, J.; Zuiderwijk, E. J. Optical light curves of massive X-ray binaries. Astronomy and Astrophysics. 1986, 154: 77. Bibcode:1986A&A...154...77T.
- ^ Falanga, M.; Bozzo, E.; Lutovinov, A.; Bonnet-Bidaud, J. M.; Fetisova, Y.; Puls, J. Ephemeris, orbital decay, and masses of ten eclipsing high-mass X-ray binaries. Astronomy & Astrophysics. 2015, 577: A130. Bibcode:2015A&A...577A.130F. arXiv:1502.07126 . doi:10.1051/0004-6361/201425191.
- ^ 6.0 6.1 6.2 6.3 Naik, Sachindra; Paul, Biswajit; Ali, Zulfikar, X-Ray Spectroscopy of the High-mass X-Ray Binary Pulsar Centaurus X-3 over Its Binary Orbit, The Astrophysical Journal, August 2011, 737 (2): 79, Bibcode:2011ApJ...737...79N, arXiv:1106.0370 , doi:10.1088/0004-637X/737/2/79
- ^ Blondin, John M. The shadow wind in high-mass X-ray binaries. Astrophysical Journal. 1994, 435: 756. Bibcode:1994ApJ...435..756B. doi:10.1086/174853.
- ^ Chodil, G.; Mark, Hans; Rodrigues, R.; Seward, F.; Swift, C. D.; Hiltner, W. A.; Wallerstein, George; Mannery, Edward J. Spectral and Location Measurements of Several Cosmic X-Ray Sources Including a Variable Source in Centaurus. Physical Review Letters. 1967-09-11, 19 (11): 681–683. doi:10.1103/PhysRevLett.19.681.
- ^ Giacconi, R.; Gursky, H.; Kellogg, E.; Schreier, E.; Tananbaum, H. Discovery of Periodic X-Ray Pulsations in Centaurus X-3 from UHURU. The Astrophysical Journal Letters. 1971-07-01, 167: L67. doi:10.1086/180762.
- ^ Hutchings, J. B.; Cowley, A. P.; Crampton, D.; van Paradijs, J.; White, N. E. Centaurus X-3. The Astrophysical Journal. 1979-05-01, 229: 1079–1084. doi:10.1086/157042.
- ^ Ash, T. D. C.; Reynolds, A. P.; Roche, P.; Norton, A. J.; Still, M. D.; Morales-Rueda, L. The mass of the neutron star in Centaurus X-3. Monthly Notices of the Royal Astronomical Society. 1999-08-01, 307: 357–364. doi:10.1046/j.1365-8711.1999.02605.x.
- ^ Wojdowski, Patrick S.; Liedahl, Duane A.; Sako, Masao. The X-Ray Photoionized Wind in Cen X-3/V779 Cen. The Astrophysical Journal. 2001-02-01, 547: 973–987. doi:10.1086/318425.
外部链接
| ||||||||||||||||||||||||||||||||||||||||||
| ||||||||||||||||||||||||||||||||
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.
Cover photo is available under {{::mainImage.info.license.name || 'Unknown'}} license.
Cover photo is available under {{::mainImage.info.license.name || 'Unknown'}} license.
Credit:
(see original file).
