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Pinwheels en el grupo Quintuplet.

Peter Tuthill1, John Monnier, Angelle Tanner

  • 1Physics Department, University of Sydney, New South Wales 2006, Australia. p.tuthill@physics.usyd.edu.au

Science (New York, N.Y.)
|August 19, 2006
PubMed
Resumen

Los astrónomos han identificado estructuras espirales giratorias alrededor de cinco enigmáticas estrellas en capullo en el cúmulo Quintuplet. Estas nebulosas de "rueda de piñón" indican sistemas binarios de viento colisionante, resolviendo un debate de larga data sobre su naturaleza.

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Área de la Ciencia:

  • La astronomía y la astrofísica.
  • Evolución Estelar Evolución Estelar
  • Sistemas de estrellas binarias sistemas estelares binarios.

Sus antecedentes:

  • El cúmulo Quintuplet contiene cinco misteriosas estrellas en capullo con espectros térmicos inusuales y altas luminosidades.
  • Las atribuciones anteriores para estas estrellas iban desde jóvenes hasta tipos evolucionados, creando un debate entre los astrónomos.

Objetivo del estudio:

  • Para resolver el debate que rodea la naturaleza de las cinco estrellas enigmáticas del capullo en el cúmulo Quintuplet.
  • Para investigar las características estructurales de estas estrellas utilizando técnicas avanzadas de imagen.

Principales métodos:

  • Se utilizaron imágenes de difracción limitada obtenidas con el telescopio Keck 1.
  • Analizó la morfología de las nebulosas que rodean a las estrellas del capullo.

Principales resultados:

  • Identificaron plumas espirales giratorias, una característica de las nebulosas binarias de "rueda de piñón" de viento en colisión.
  • Resolvió el debate confirmando que las estrellas son parte de sistemas binarios con vientos en colisión.

Conclusiones:

  • Las cinco estrellas del capullo en el cúmulo Quintuplet se identifican como sistemas binarios de viento colisionante.
  • Las estructuras espirales observadas proporcionan una explicación definitiva de las propiedades enigmáticas de las estrellas.
  • Estos hallazgos tienen implicaciones para la comprensión de las curvas de luz de las estrellas Wolf-Rayet y las supernovas.