Insights into the birth and death of exoplanetary systems from polluted white dwarfs

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• Andy Buchan (Warwick)
• Tuesday 05 November 2024, 13:00-14:00
• Ryle seminar room + ONLINE - Details to be sent by email.

If you have a question about this talk, please contact Dr Dolev Bashi.

Most stars with planetary systems will end their lives as white dwarfs. A significant fraction of white dwarfs have accreted metals from their own planetary systems. The relative quantities of these metals can be measured, thereby turning these so-called “polluted” white dwarfs into an unlikely source of valuable information about exoplanetary material. In this talk, I will discuss some of the key results from modelling white dwarf pollution, including the formation conditions of exoplanetary material, the possible presence of water, and the fate of planets after the death of their star. I will also present preliminary results characterising uncertainties associated with the white dwarf atmosphere itself, and I will discuss their impact on our understanding of exoplanetary material.

This talk is part of the Exoplanet Seminars series.

This talk is included in these lists:

• Cambridge Astronomy Talks
• Combined External Astrophysics Talks DAMTP
• Cosmology, Astrophysics and General Relativity
• Exoplanet Seminars
• Institute of Astronomy Talk Lists
• LCLU Departmental Talks
• Ryle seminar room + ONLINE - Details to be sent by email

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