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La estrella de período más corto conocida que orbita el agujero negro supermasivo de nuestra galaxia
1Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, CA 90095-1547, USA.
Science (New York, N.Y.)
|October 9, 2012
Resumen
Los astrónomos descubrieron S0-102, una estrella que orbita alrededor del agujero negro supermasivo de nuestra galaxia con un período de 11,5 años. Este hallazgo ayuda a probar la relatividad general cerca del centro galáctico.
Área de la Ciencia:
- La astrofísica es la astrofísica.
- Relatividad general La relatividad general.
- Dinámica Galáctica es la dinámica galáctica.
Sus antecedentes:
- Las estrellas que orbitan el centro galáctico proporcionan información sobre los agujeros negros supermasivos.
- Las imágenes de alta resolución angular han sido cruciales para el estudio de estas estrellas.
Objetivo del estudio:
- Para detectar y caracterizar estrellas con períodos orbitales cortos cerca del agujero negro supermasivo.
- Para mejorar la muestra de estrellas con cobertura completa de fase orbital para un análisis preciso del potencial gravitacional.
Principales métodos:
- Utilizando 17 años de datos del Observatorio W. M. Keck.
- Empleando técnicas avanzadas de imagen y metodologías de análisis de datos.
Principales resultados:
- Detección de S0-102, una estrella con un período orbital de 11,5 años.
- Doblar el número de estrellas conocidas con períodos orbitales menores a 20 años y cobertura completa de fases.
Conclusiones:
- S0-102 ofrece nuevas oportunidades para resolver los parámetros del potencial gravitacional central.
- Las futuras observaciones de S0-102 permitirán probar la teoría de la relatividad general de Einstein en un nuevo régimen.
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