Planetary Lunch Seminar – Laura Rogers (University of Cambridge )

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When:
March 15, 2022 @ 12:30 pm – 1:30 pm
2022-03-15T12:30:00-04:00
2022-03-15T13:30:00-04:00
Where:
Room 54-1623 and https://mit.zoom.us/j/92330499130
Categories
Department Lecture Series

Title: An observational perspective on white dwarf planetary systems.

Abstract: Around a third of single white dwarfs are externally polluted by planetary material. It is hypothesised that chunks of planetary material get perturbed onto star grazing orbits, tidally disrupt, and accrete onto the white dwarfs’ atmosphere. I will give an observational perspective on these enigmatic polluted white dwarf systems. How does this exoplanetary ​material ultimately end up in the atmosphere of these white dwarfs? What is the composition of the planetary material that has polluted the white dwarfs? What can this composition tell us about exoplanetary material and geological processes in exoplanetary systems?

About this Series: The MIT Planetary Lunch Seminar [PLS] is a weekly seminar series organized within the EAPS department. Colloquia topics span the range of research interests of the department’s planetary sciences research program. The seminars take place on Tuesdays from 12:30–1:30 pm, unless otherwise noted (term-time only). Speakers include members of the MIT community and visitors. Talks are intended to appeal to graduate students, postdocs, research scientists, and faculty with a background in planetary science. Contact: planetary-org@mit.edu.