Archivo de imágenes de Hubble
Impresión artística de una enana blanca 'contaminada' con desechos planetarios
This is an artist's impression of a burned-out star, called a white dwarf, accreting rocky debris left behind by the star's surviving planetary system. At lower right, an asteroid can be seen falling toward a Saturn-like disk of dust that is encircling the dead star. Infalling as...
- Fecha
- Jan 1, 2013
- Misión
- Hubble Space Telescope
- ID de archivo
- hubblesite-images-2013-18-3178-image
This is an artist's impression of a burned-out star, called a white dwarf, accreting rocky debris left behind by the star's surviving planetary system. At lower right, an asteroid can be seen falling toward a Saturn-like disk of dust that is encircling the dead star. Infalling asteroids pollute the white dwarf's atmosphere with silicon. This element is not found in white dwarfs, but it is part of a rocky planet's composition. This "planetary chemistry" implies that the white dwarf's progenitor star had planets composed of Earth-like material, and that such planets are common around stars. The telltale chemical fingerprints were identified by the Hubble Space Telescope's Cosmic Origins Spectrograph (COS). The dead star is one of two observed by Hubble in the Hyades star cluster, 150 light-years from Earth.
Credits
NASA, ESA, and G. Bacon (STScI)Detalles de la imagen
| About The Data | |
|---|---|
| Data Description | The image was created from Hubble data from proposal : B. Gaensicke (University of Warwick), D. Koester (Universitat Kiel), J. Farihi (Institute of Astronomy, University of Cambridge), and J. Girven (University of Warwick). |
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La imagen y el material de referencia se acreditan al archivo oficial de la misión enlazado a continuación.
Ver en NASA.gov