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Descubrimiento de un gran disco de polvo alrededor de la cercana estrella AU Microscopii
Paul Kalas1, Michael C Liu, Brenda C Matthews
1Astronomy Department and Radio Astronomy Laboratory, 601 Campbell Hall, Berkeley, CA 94720, USA. kalas@astro.berkeley.edu
Science (New York, N.Y.)
|February 28, 2004
Resumen
Los astrónomos descubrieron un disco de polvo circumestelar alrededor de la joven estrella de tipo M AU Microscopii. Este hallazgo ofrece información sobre la formación de planetas alrededor del tipo más común de estrella en la galaxia.
Área de la Ciencia:
- La astronomía es la astronomía.
- Ciencia exoplanetaria Ciencia de los exoplanetas.
Sus antecedentes:
- AU Microscopii (AU Mic) es una joven estrella de tipo M.
- Las estrellas de tipo M son el tipo estelar más común en la galaxia.
- Beta Pictoris es una estrella joven similar con un disco de polvo conocido.
Objetivo del estudio:
- Para informar sobre el descubrimiento de un disco de polvo circumestelar alrededor de AU Microscopii.
- Para investigar el potencial de formación de planetas alrededor de estrellas tipo M.
Principales métodos:
- Observación directa del disco de polvo circunstelar.
Principales resultados:
- Un disco de polvo circumestelar fue detectado alrededor de AU Microscopii.
- El disco se extiende de 50 a 210 unidades astronómicas (UA).
- El polvo en el disco tiene una vida más larga que la edad actual de la estrella.
Conclusiones:
- AU Microscopii es la estrella más cercana con material sólido directamente observado para la formación de planetas.
- El disco AU Mic proporciona datos cruciales para comprender la formación de planetas en sistemas estelares de tipo M.
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