Astronomy:Stellar vampirism

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Short description: Astronomical phenomenon
See also: Mass transfer § Astrophysics, Roche lobe § Mass transfer, and Binary star § Mass transfer and accretion
Artist's impression of a vampire star and its victim

File:Eso2204b.webm Stellar vampirism is an astronomical phenomenon in which a star (usually O-type), known as a "vampire star," in a binary system attracts the mass of another.[1][2] As stars age in binary systems, they can grow past the threshold at which their gravity protects them from their companion.[1] The process of stellar vampirism results in the "vampire star" having an extended life. The "victim" star is left with its core exposed, which mimics the appearance of a much younger star. An example of a star system exhibiting stellar vampirism is HR 6819.[2][3][4][5]

See also

References

  1. ↑ 1.0 1.1 Dunham, Will (2022-03-02). "Stellar 'vampire' finds love at first bite with companion star" (in en). Reuters. https://www.reuters.com/lifestyle/stellar-vampire-finds-love-first-bite-with-companion-star-2022-03-02/. 
  2. ↑ 2.0 2.1 "Most Massive Stars Live as Vampires in Close Stellar Pairs" (in en). 2012-07-26. https://www.space.com/16767-massive-stars-companions-merge-vampire-stars.html. 
  3. ↑ information@eso.org. "The Brightest Stars Don't Live Alone - VLT finds most stellar heavyweights come in interacting pairs" (in en). https://www.eso.org/public/news/eso1230/. 
  4. ↑ information@eso.org. "Stellar Vampires Unmasked - VLT Presents Evidence for Mass Transfer as Origin of some Blue Straggler Stars" (in sv). https://www.eso.org/public/news/eso0637/. 
  5. ↑ published, Robert Lea (2023-11-21). "'Stellar vampires' may feed on hidden stars in their systems" (in en). https://www.space.com/triple-star-system-vampire-stellar-bodies-be-disks. 




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