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Una población de objetos envueltos en polvo orbitando el agujero negro galáctico
Anna Ciurlo1, Randall D Campbell2, Mark R Morris3
1Department of Physics and Astronomy, University of California, Los Angeles, CA, USA. ciurlo@astro.ucla.edu.
Nature
|January 17, 2020
Resumen
Los astrónomos descubrieron cuatro nuevos objetos G cerca de Sagitario A*, revelando que estos cuerpos celestes únicos se formaron comúnmente. Sus variadas órbitas sugieren un origen compartido a pesar de las trayectorias individuales alrededor del agujero negro supermasivo.
Área de la Ciencia:
- Astronomía y astrofísica
- Investigación del centro galáctico
- Estudios de agujeros negros supermasivos
Sus antecedentes:
- El centro de la Vía Láctea alberga a Sagitario A*, un agujero negro supermasivo rodeado de estrellas y gas.
- Dos objetos inusuales, G1 y G2, fueron previamente identificados orbitando Sagitario A*, exhibiendo características tanto de nubes de gas como de objetos de masa estelar.
Objetivo del estudio:
- Para investigar la naturaleza y el origen de los enigmáticos objetos G cerca de Sagitario A*.
- Para determinar si G1 y G2 representan una clase única de objetos o si forman parte de una población más grande.
Principales métodos:
- Observaciones de cuatro objetos G adicionales dentro de 0.04 parsecs de Sagitario A*.
- Análisis de sus características orbitales y propiedades físicas.
Principales resultados:
- Descubrimiento de cuatro nuevos objetos G, expandiendo la población conocida a seis.
- Las órbitas muy variadas de los seis objetos G indican un evento de formación común, pero separado.
Conclusiones:
- Los objetos G forman una clase única de cuerpos celestes que se encuentran solo en el entorno del centro galáctico.
- Su formación común sugiere un proceso específico que ocurre muy cerca del agujero negro supermasivo.
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