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Radial Velocity and Astrometric Evidence for a Close Companion to Betelgeuse

We examine a century of radial velocity, visual magnitude, and astrometric observations of the nearest red supergiant, Betelgeuse, in order to reexamine the century-old assertion that Betelgeuse might be a spectroscopic binary. These data reveal Betelgeuse varying stochastically over years and decad...

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Principais autores: Morgan MacLeod, Sarah Blunt, Robert J. De Rosa, Andrea K. Dupree, Thomas Granzer, Graham M. Harper, Caroline D. Huang, Emily M. Leiner, Abraham Loeb, Eric L. Nielsen, Klaus G. Strassmeier, Jason J. Wang, Michael Weber
Formato: Artigo
Idioma:Inglês
Publicado: IOP Publishing 2024-01-01
Series:The Astrophysical Journal
Assuntos:
Red supergiant stars
Binary stars
Tidal interaction
Astrometric binary stars
Radial velocity
Acceso en liña:https://doi.org/10.3847/1538-4357/ad93c8
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