Blue supergiant
A blue supergiant (BSG) is a hot, luminous star, also called an OB supergiant. They are usually thought to be those with luminosity class I and spectral class B9 or earlier,[1] although sometimes A-class supergiants are also called blue supergiants.[2][3][4]
They are bigger than the Sun but smaller than a red supergiant, with surface temperatures of 10,000–50,000 K and luminosities from about 10,000 to a million times that of the Sun. They might form when two stars merge together.[5][6]
Related pages
changeReferences
change- ↑ Massey, P.; Puls, J.; Pauldrach, A. W. A.; Bresolin, F.; Kudritzki, R. P.; Simon, T. (2005). "The Physical Properties and Effective Temperature Scale of O-Type Stars as a Function of Metallicity. II. Analysis of 20 More Magellanic Cloud Stars and Results from the Complete Sample". The Astrophysical Journal. 627 (1): 477–519. arXiv:astro-ph/0503464. Bibcode:2005ApJ...627..477M. doi:10.1086/430417. S2CID 18172086.
- ↑ Yüce, Kutluay (2005-01-01). "Spectral Analysis of 4 Lacertae and ν Cephei". Baltic Astronomy. 14: 51–82. Bibcode:2005BaltA..14...51Y. ISSN 1021-6766.
- ↑ Burgos, A. de; Simon-Díaz, S.; Lennon, D. J.; Dorda, R.; Negueruela, I.; Urbaneja, M. A.; Patrick, L. R.; Herrero, A. (2020-11-01). "High-resolution spectroscopic study of massive blue and red supergiants in Perseus OB1 - I. Definition of the sample, membership, and kinematics". Astronomy & Astrophysics. 643: A116. arXiv:2008.13299. Bibcode:2020A&A...643A.116D. doi:10.1051/0004-6361/202039019. ISSN 0004-6361.
- ↑ Wagle, Gururaj A.; Ray, Alak; Raghu, Adarsh (May 2020). "Type IIP Supernova Progenitors. III. Blue to Red Supergiant Ratio in Low-metallicity Models with Convective Overshoot". The Astrophysical Journal. 894 (2): 118. arXiv:2004.14419. Bibcode:2020ApJ...894..118W. doi:10.3847/1538-4357/ab8bd5. ISSN 0004-637X.
- ↑ Menon, Athira; Ercolino, Andrea; Urbaneja, Miguel A.; Lennon, Daniel J.; Herrero, Artemio; Hirai, Ryosuke; Langer, Norbert; Schootemeijer, Abel; Chatzopoulos, Emmanouil; Frank, Juhan; Shiber, Sagiv (March 2024). "Evidence for Evolved Stellar Binary Mergers in Observed B-type Blue Supergiants". The Astrophysical Journal Letters. 963 (2): L42. Bibcode:2024ApJ...963L..42M. doi:10.3847/2041-8213/ad2074. ISSN 2041-8205.
- ↑ Cite error: The named reference
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