File:SN 2006X, before and after the Type Ia Supernova explosion (artist's impression).jpg
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DescriptionSN 2006X, before and after the Type Ia Supernova explosion (artist's impression).jpg |
English: Left : artist's impression of the favoured configuration for the progenitor system of SN 2006X before the explosion. The White Dwarf (on the right) accretes material from the Red Giant star, which is losing gas in the form of stellar wind (the diffuse material surrounding the giant). Only part of the gas is accreted by the White Dwarf, through a so-called accretion disk which surrounds the compact star. The remaining gas escapes the system and eventually dissipates into the interstellar medium. The Red Giant star has a radius about 100 times larger than our Sun, while the White Dwarf is about 100 times smaller than the Sun. Español: Izquierda: impresión artística del sistema estelar que habría originado la supernova SN 2006X. La enana blanca (abajo) absorbe material desde la gigante roja, que pierde gas en forma de viento estelar (el material difuso que rodea a la estrella gigante) Solo parte de este gas es absorbido por la enana blanca, a través del llamado disco de acreción que rodea a la estrella compacta. El gas remanente escapa del sistema y eventualmente se disipa en el medio interestelar. La estrella gigante roja tiene un radio aproximadamente 100 más grande que el Sol, mientras que la enana blanca es cerca de 100 veces más pequeña que el Sol.
Derecha: cuando la masa de la enana blanca alcanza el límite crítico, una explosión termonuclear destruye la estrella, expulsando material estelar a velocidades que alcanzan una décima parte del la velocidad de la luz. Veinte días después de la explosión, cuando la supernova alcanza su máximo brillo, el material expulsado ha recorrido una distancia de unas 450 veces la distancia que separa la Tierra del Sol. La enorme cantidad de luz emitida por la supernova pasa a través de todo este material antes de llegar hasta nosotros, revelando la composición de las capas externas de gas que fueron expulsadas por la gigante roja durante los últimos cientos de años antes de la explosión. |
Date | |
Source | http://www.eso.org/public/images/eso0731b/ |
Author | ESO |
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Credit/Provider | ESO |
Source | European Southern Observatory |
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Date and time of data generation | 00:00, 12 July 2007 |
Keywords | SN 2006X |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany |