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Contact binary
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<h2 id="see-also">See also</h2> <ul><li><a href="/facts/Contact_binary_(small_Solar_System_body)/eEds70t2">Contact binary (small Solar System body)</a>, two asteroids gravitating toward each other until they touch.</li> <li><a href="/facts/HR_5171/MTe217o3">HR 5171</a>, a <a href="/facts/Hypergiant/Q95EmMhT">yellow hypergiant</a> previously thought to be a contact binary.</li> <li><a href="/facts/Interacting_binary_star/f9Shbq6S">Interacting binary star</a></li> <li><a href="/facts/KIC_9832227/JFIFaNVR">KIC 9832227</a>, a contact binary and a previous candidate for stellar merger.</li> <li><a href="/facts/Luminous_red_nova/7L9Lvg7k">Luminous red nova</a>, e.g. <a href="/facts/V1309_Scorpii/XuzPynnr">V1309 Scorpii</a> (2008), may result from the merger of a contact binary.</li> <li><a href="/facts/MY_Camelopardalis/lQQdAsCo">MY Camelopardalis</a>, a contact binary that is already sharing an atmosphere with each other</li> <li><a href="/facts/Thorne%25E2%2580%2593%25C5%25BBytkow_object/MHkS8dWu">Thorne–Żytkow object</a>, a type of star wherein a red giant or supergiant contains a neutron star at its core.</li> <li><a href="/facts/VFTS_352/Evo1IISD">VFTS 352</a>, a massive contact binary in the <a href="/facts/Tarantula_Nebula/nkrNzh6I">Tarantula Nebula</a>.</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>Darling, David. "binary star". www.daviddarling.info. Retrieved 2019-05-06. <a href="http://www.daviddarling.info/encyclopedia/B/binarystar.html" target="_blank">http://www.daviddarling.info/encyclopedia/B/binarystar.html</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Thompson, Michael J. (2006). An Introduction to Astrophysical Fluid Dynamics. London: Imperial College Press. pp. 51–53. ISBN 1-86094-615-1. <a href="1-86094-615-1" target="_blank">1-86094-615-1</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Kuiper, Gerard P. (1941). "On the Interpretation of β Lyrae and Other Close Binaries". Astrophysical Journal. 93: 133. Bibcode:1941ApJ....93..133K. doi:10.1086/144252. <a href="http://articles.adsabs.harvard.edu/pdf/1941ApJ....93..133K" target="_blank">http://articles.adsabs.harvard.edu/pdf/1941ApJ....93..133K</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Tassoul, Jean Louis; et al. (2000). Stellar Rotation. Cambridge, UK, New York: Cambridge University Press. p. 231. ISBN 0-521-77218-4. <a href="0-521-77218-4" target="_blank">0-521-77218-4</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>Mullaney, James (2005). Double and Multiple Stars and how to Observe Them. New York, London: Springer. p. 19. ISBN 1-85233-751-6. <a href="1-85233-751-6" target="_blank">1-85233-751-6</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>Csizmadia, Sz.; Klagyivik, P. (November 2004). "On the properties of contact binary stars". Astronomy and Astrophysics. 426 (3): 1001–1005. arXiv:astro-ph/0408049. Bibcode:2004A&A...426.1001C. doi:10.1051/0004-6361:20040430. <a href="/wiki/ArXiv_(identifier)" target="_blank">/wiki/ArXiv_(identifier)</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>Ivanova, N.; et al. (2013). "Common envelope evolution: where we stand and how we can move forward". The Astronomy and Astrophysics Review. 21: 59. arXiv:1209.4302. Bibcode:2013A&ARv..21...59I. doi:10.1007/s00159-013-0059-2. <a href="/wiki/ArXiv_(identifier)" target="_blank">/wiki/ArXiv_(identifier)</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> </ol>