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Las estrellas parecidas al Sol producen súper llamaradas aproximadamente una vez por siglo
Valeriy Vasilyev1, Timo Reinhold1, Alexander I Shapiro1,2
1Max-Planck-Institut für Sonnensystemforschung, Göttingen, Germany.
Science (New York, N.Y.)
|December 12, 2024
Resumen
Las estrellas similares al Sol pueden producir poderosas súper llamaradas estelares, similares a las llamaradas solares pero mucho más grandes. Este estudio sugiere que nuestro Sol también podría generar estos eventos, que ocurren aproximadamente una vez por siglo.
Área de la Ciencia:
- Astronomía y astrofísica
- Física estelar
Sus antecedentes:
- Las súper llamaradas estelares son estallidos energéticos que exceden las llamaradas solares, con energías de hasta 10^36 erg.
- El potencial de nuestro Sol para producir superflares y su frecuencia sigue siendo desconocido.
Objetivo del estudio:
- Para investigar la ocurrencia y la frecuencia de las superflares en estrellas similares al Sol.
- Para determinar si el Sol es capaz de generar súper llamaradas.
Principales métodos:
- Utilizó datos de fotometría del observatorio espacial Kepler.
- Analizó las observaciones de 56.450 estrellas similares al Sol para identificar superflares.
Principales resultados:
- Se han identificado 2889 súper llamaradas en 2527 estrellas similares al Sol.
- Se han detectado superflares (>10^34 erg) que ocurren aproximadamente una vez por siglo en estrellas similares al Sol.
- Descubrimos que la distribución de energía de las súper llamaradas se alinea con las extrapolaciones de la distribución de las llamaradas solares.
Conclusiones:
- Las súper llamaradas son un fenómeno común en estrellas similares al Sol.
- El Sol probablemente comparte el mismo mecanismo físico responsable de las superflares estelares.
- Estos hallazgos sugieren que el Sol puede ser capaz de producir superflares.
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