A colliding-wind binary is a binary star system in which the two members are massive stars that emit powerful, radiatively-driven stellar winds. The location where these two winds collide produces a strong shock front that can cause radio, X-ray and possibly synchrotron radiation emission.[1] Wind compression in the bow shock region between the two stellar winds allows dust formation. When this dust streams away from the orbiting pair, it can form a pinwheel nebula of spiraling dust. Such pinwheels have been observed in the Quintuplet Cluster[2]
A composite optical/x-ray image of Eta Carinae and its surrounding nebula taken by the Chandra X-ray Observatory and the Hubble Space Telescope. The blue inner part of the nebula is optical emission, powered by the collision of winds from Eta Carinae and its unseen companion.[3] Credit: Chandra Science Center and NASA.
The archetype of such a colliding-wind binary system is WR 140 (HD 193793), which consists of a 20 solar mass (M☉) Wolf-Rayet star orbiting about a 50 M☉, spectral classO4-5 main sequence star every 7.9 years. The high orbital eccentricity of the pair allows astronomers to observe changes in the colliding wind region as their separation varies.[4][5] Another prominent example of a colliding-wind binary is thought to be Eta Carinae, one of the most luminous objects in the Milky Way galaxy.[6] The first colliding-wind binary to be detected in the X-ray band outside the Milky Way galaxy was HD 5980, located in the Small Magellanic Cloud.[7]
^Volpi, Delia; Blomme, Ronny; De Becker, Michael; Rauw, Gregor (December 2010). "Non-thermal radio emission from colliding-wind binaries: modelling Cyg OB2 No. 8A and No. 9". Proceedings of the International Astronomical Union. 6: 638–639. arXiv:1012.3403. Bibcode:2011IAUS..272..638V. doi:10.1017/S1743921311011689. S2CID 7269006.
^Tuthill, Peter; et al. (August 18, 2006). "Pinwheels in the Quintuplet Cluster". Science. 313 (5789): 935. arXiv:astro-ph/0608427. Bibcode:2006Sci...313..935T. CiteSeerX10.1.1.255.6805. doi:10.1126/science.1128731. PMID 16917053. S2CID 17793345. Retrieved 2011-01-14.
^"Eta Carinae: New View of a Doomed Star". Chandra. June 20, 2007. Retrieved 2011-01-18.
^Dougherty, S. M.; Trenton, V.; Beasley, A. J. (November 2010). "The orbit and distance of WR140". Bulletin de la Société Royale des Sciences de Liège. 80: 658. arXiv:1011.0779. Bibcode:2011BSRSL..80..658D.
^Groh, J. H.; Madura, T. I.; Owocki, S. P.; Hillier, D. J.; Weigelt, G. (June 2010). "Is Eta Carinae a Fast Rotator, and How Much Does the Companion Influence the Inner Wind Structure?". The Astrophysical Journal Letters. 716 (2): L223–L228. arXiv:1006.4816. Bibcode:2010ApJ...716L.223G. doi:10.1088/2041-8205/716/2/L223. S2CID 119188874.
^Naeye, Bob (February 16, 2007). "First X-Ray Detection of a Colliding-Wind Binary Beyond Milky Way". NASA, Goddard Space Flight Center.
This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it.
colliding, wind, binary, colliding, wind, binary, binary, star, system, which, members, massive, stars, that, emit, powerful, radiatively, driven, stellar, winds, location, where, these, winds, collide, produces, strong, shock, front, that, cause, radio, possi. A colliding wind binary is a binary star system in which the two members are massive stars that emit powerful radiatively driven stellar winds The location where these two winds collide produces a strong shock front that can cause radio X ray and possibly synchrotron radiation emission 1 Wind compression in the bow shock region between the two stellar winds allows dust formation When this dust streams away from the orbiting pair it can form a pinwheel nebula of spiraling dust Such pinwheels have been observed in the Quintuplet Cluster 2 A composite optical x ray image of Eta Carinae and its surrounding nebula taken by the Chandra X ray Observatory and the Hubble Space Telescope The blue inner part of the nebula is optical emission powered by the collision of winds from Eta Carinae and its unseen companion 3 Credit Chandra Science Center and NASA The archetype of such a colliding wind binary system is WR 140 HD 193793 which consists of a 20 solar mass M Wolf Rayet star orbiting about a 50 M spectral class O4 5 main sequence star every 7 9 years The high orbital eccentricity of the pair allows astronomers to observe changes in the colliding wind region as their separation varies 4 5 Another prominent example of a colliding wind binary is thought to be Eta Carinae one of the most luminous objects in the Milky Way galaxy 6 The first colliding wind binary to be detected in the X ray band outside the Milky Way galaxy was HD 5980 located in the Small Magellanic Cloud 7 See also editStruve Sahade effect Cosmic wind Stellar wind Solar wind Planetary wind Stellar wind bubble Pulsar wind nebula Galactic superwind SuperwindReferences edit Volpi Delia Blomme Ronny De Becker Michael Rauw Gregor December 2010 Non thermal radio emission from colliding wind binaries modelling Cyg OB2 No 8A and No 9 Proceedings of the International Astronomical Union 6 638 639 arXiv 1012 3403 Bibcode 2011IAUS 272 638V doi 10 1017 S1743921311011689 S2CID 7269006 Tuthill Peter et al August 18 2006 Pinwheels in the Quintuplet Cluster Science 313 5789 935 arXiv astro ph 0608427 Bibcode 2006Sci 313 935T CiteSeerX 10 1 1 255 6805 doi 10 1126 science 1128731 PMID 16917053 S2CID 17793345 Retrieved 2011 01 14 Eta Carinae New View of a Doomed Star Chandra June 20 2007 Retrieved 2011 01 18 Dougherty S M Trenton V Beasley A J November 2010 The orbit and distance of WR140 Bulletin de la Societe Royale des Sciences de Liege 80 658 arXiv 1011 0779 Bibcode 2011BSRSL 80 658D Finley Dave April 11 2005 Scientists Track Collision of Powerful Stellar Winds National Radio Astronomy Observatory Retrieved 2011 01 14 Groh J H Madura T I Owocki S P Hillier D J Weigelt G June 2010 Is Eta Carinae a Fast Rotator and How Much Does the Companion Influence the Inner Wind Structure The Astrophysical Journal Letters 716 2 L223 L228 arXiv 1006 4816 Bibcode 2010ApJ 716L 223G doi 10 1088 2041 8205 716 2 L223 S2CID 119188874 Naeye Bob February 16 2007 First X Ray Detection of a Colliding Wind Binary Beyond Milky Way NASA Goddard Space Flight Center nbsp This binary or multiple star system related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Colliding wind binary amp oldid 1168500723, wikipedia, wiki, book, books, library,
