半人马座X-3
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1038 erg/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
類型 單獨脈衝星 聯脈衝星 性質 相關條目 發現 探測的人造衛星 其它