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ASTRÓFÍSICA: Las estrellas de neutrones implican que la relatividad es un arrastre
Science (New York, N.Y.)
|September 11, 2007
Resumen
Los astrónomos encontraron evidencia potencial de arrastre de marco, un efecto relativista donde la materia giratoria tuerce el espacio-tiempo. Este descubrimiento, observado en estrellas de neutrones utilizando datos de rayos X, ofrece nuevos conocimientos sobre la física extrema.
Área de la Ciencia:
- La astrofísica es la astrofísica.
- Relatividad general La relatividad general.
Sus antecedentes:
- Las estrellas de neutrones son restos de estrellas masivas, que exhiben propiedades físicas extremas.
- El arrastre de marco (o el efecto Lense-Thirring) es una predicción de la teoría de la relatividad general de Einstein.
Objetivo del estudio:
- Para buscar evidencia observacional del arrastramiento de cuadros.
- Para investigar el entorno del espacio-tiempo alrededor de las estrellas de neutrones que giran rápidamente.
Principales métodos:
- Análisis de los datos de rayos X del explorador de tiempo de rayos X Rossi de la NASA.
- Estudiando los patrones de parpadeo de tres estrellas de neutrones en sistemas binarios.
Principales resultados:
- Se detectaron pruebas circunstanciales que sugieren que se arrastró el marco.
- Los patrones de parpadeo observados son consistentes con que el espacio-tiempo está siendo desgarrado por estrellas de neutrones giratorias.
Conclusiones:
- Este hallazgo puede representar la primera evidencia clara del efecto de arrastre del marco.
- Se necesitan más observaciones para confirmar la presencia de un marco que se arrastra alrededor de las estrellas de neutrones.
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