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Respuesta a Comentario sobre "Un sistema binario de estrella gigante y agujero negro de baja masa que no interactúa"
Todd A Thompson1,2, Christopher S Kochanek3,2, Krzysztof Z Stanek3,2
1Department of Astronomy, The Ohio State University, Columbus, OH 43210, USA. thompson.1847@osu.edu.
Science (New York, N.Y.)
|May 9, 2020
Resumen
El estudio sugiere que el compañero de una estrella gigante roja es probablemente un agujero negro, no un sistema estelar binario. Este hallazgo impacta nuestra comprensión de la evolución estelar y la formación de objetos compactos en sistemas binarios.
Área de la Ciencia:
- La astrofísica
- Astronomía estelar
- Objetos compactos
Sus antecedentes:
- El sistema 2MASS J05215658+4359220 tiene una estrella gigante roja con una compañera invisible.
- Las interpretaciones anteriores proponían que el compañero podría ser un sistema estelar binario.
Objetivo del estudio:
- Para reevaluar la naturaleza del compañero invisible en el sistema 2MASS J05215658+4359220.
- Para determinar la masa y composición más plausibles del objeto compañero.
Principales métodos:
- Análisis de los datos de observación existentes para el sistema 2MASS J05215658+4359220.
- Modelado de masas estelares y configuraciones del sistema.
Principales resultados:
- Los datos favorecen fuertemente una masa de gigante roja de aproximadamente 1,7 masas solares.
- Esta masa implica que el compañero invisible es un agujero negro con una masa estimada de 5,3 masas solares.
Conclusiones:
- El compañero de la gigante roja en 2MASS J05215658+4359220 es muy probablemente un agujero negro.
- Esta conclusión desafía las hipótesis anteriores de un sistema estelar triple.
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