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Published on: July 12, 2017
Durabilidad del disco de acreción de los púlsares de milisegundos
Resumen
Los púlsares de milisegundos pueden retener un disco duradero después de acrecentar materia de una estrella compañera. Este disco residual, orbitando la estrella de neutrones, crea un objeto celeste único que se asemeja a un Saturno en miniatura.
Área de la Ciencia:
- La astrofísica es la astrofísica.
- Física de las estrellas de neutrones Física de las estrellas de neutrones
Sus antecedentes:
- Los púlsares de milisegundos son estrellas de neutrones que giran rápidamente.
- Sus cortos períodos se atribuyen a la acumulación de una estrella compañera.
Objetivo del estudio:
- Para explorar la posibilidad de un disco residual que queda después de la acreción de estrellas de neutrones.
- Proponer un modelo alternativo para el estado final de acreción de estrellas de neutrones.
Principales métodos:
- Modelado teórico de los procesos de acreción.
- Análisis de modelos convencionales para la disipación del disco.
Principales resultados:
- Los modelos convencionales asumen la pérdida completa de disco después de la acreción.
- Un disco residual y estable que orbita la estrella de neutrones es un resultado plausible.
Conclusiones:
- Las estrellas de neutrones acrecentadas pueden evolucionar en sistemas con una estrella de neutrones central y un disco duradero circundante.
- Esta configuración se asemeja a una versión en miniatura y densa de Saturno.
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