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Showing 1 to 2 of 2 for “"white dwarf pollution"”.
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Exogeology as Revealed by Polluted White Dwarfs
… of information in the form of dead stars called white dwarfs. Many white dwarfs have accreted remnants of their own planetary systems, causing their atmospheres to become polluted by heavy elements. The relative quantities of these elements contain a wealth of information about the composition of …
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A matter of life and death: the formation and destruction of planetary bodies
… and has shed its outer layers to become a white dwarf star. Many of these white dwarfs show metal absorption lines in their spectra, indicative of pollution with accreted planetary material. From the analysis of such spectra, the composition of exoplanetary material can be recovered. In …