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Un cometa binario del cinturón principal

Jessica Agarwal1, David Jewitt2,3, Max Mutchler4

  • 1Max Planck Institute for Solar System Research, Justus-von-Liebig Weg 3, 37077 Göttingen, Germany.

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|September 22, 2017
PubMed
Resumen
Este resumen es generado por máquina.

El asteroide 288P es un cometa binario único del cinturón principal, que exhibe una actividad similar a la de los cometas impulsada por la sublimación. Este descubrimiento pone de relieve el papel significativo de los torques de sublimación en la configuración de las órbitas binarias de los asteroides.

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Área de la Ciencia:

  • La astronomía
  • Ciencias planetarias
  • Dinámica del sistema solar

Sus antecedentes:

  • Los asteroides evolucionan a través de colisiones y interrupciones de rotación, formando binarios y liberando polvo.
  • Los cometas del cinturón principal muestran actividad transitoria debido a la sublimación de volátiles excavados.
  • Los pares de sublimación influyen en las velocidades de giro del cometa activo y pueden causar la división del núcleo.

Objetivo del estudio:

  • Para investigar la naturaleza del asteroide activo del cinturón principal 288P.
  • Para determinar si 288P es un sistema binario y entender su mecanismo de actividad.
  • Para explorar las implicaciones de los torques de sublimación en la evolución de los asteroides binarios.

Principales métodos:

  • Astronomía observacional para estudiar la actividad y las características del asteroide 288P.
  • Análisis de la dinámica orbital y las propiedades físicas de los componentes del asteroide.
  • Comparación con los modelos de actividad de asteroides y cometas conocidos.

Principales resultados:

  • El asteroide 288P ha sido confirmado como un cometa binario del cinturón principal.
  • Muestra características inusuales: amplia separación, tamaño casi igual de los componentes y alta excentricidad.
  • Las observaciones apoyan firmemente la sublimación como el motor de la actividad de 288P.

Conclusiones:

  • 288P representa un nuevo tipo de sistema de asteroides binarios.
  • La sublimación es un factor clave en su actividad observada.
  • Los torques de sublimación son significativos en la evolución orbital de los asteroides binarios.