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Showing 1 to 3 of 3 for “"Polluted White Dwarfs"”.
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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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Polluted White Dwarfs: Insights into Ancient Extrasolar Planetary Systems
… this thesis, I demonstrate how the pollution of white dwarf stars by rocky exoplanetary material offers an insight into the bulk composition of rocky exo-planets, and thus, the geological processes which occur on them. I present a model which reproduces the atmospheric metal abundances present in …
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Observational Insights into White Dwarf Planetary Systems
… their characterisation. Spectroscopic studies of white dwarfs ‘polluted’ by planetary material are a unique laboratory allowing measurements of their bulk composition. This thesis focuses on these polluted white dwarfs to observationally investigate how the material ultimately accretes onto the …