PAOC Colloquium: Julien de Wit (MIT)
Monday, February 25, 2019 at 12:00pm to 1:00pm
Building 54, 54-915
21 AMES ST, Cambridge, MA 02139
New Worlds, New Perspectives
Exoplanets provide an unprecedented opportunity to sample the multi-dimensional spaces behind themes such as planetary system and planet formation. For centuries, our understanding of planetary systems has been based on observations of a unique sample, the Solar System. Since the first discovery of an exoplanet in 1995, over 3,900 exoplanets have been found in over 2,900 other systems; a sample size increase of three orders of magnitude that has already resulted in profound changes in our understanding of planetary systems. The arrival of high-throughput facilities (e.g., Kepler and TESS) have highlighted the need for standardized data acquisition/processing tools for exoplanet detection. The arrival of the next generation of observatories (e.g., JWST) may, however, require a mixed approach owing to the unparalleled increase in information content they will enable. In this talk, I will introduce examples of how we have leveraged in the past such information-content increase to gain new insights into exoplanets (e.g., map of an exoplanet atmosphere, direct measure of radiative and dynamical properties of an exoplanet atmosphere), discuss how we can build on this experience with the next generation of observatories, introduce upcoming challenges for the field, and consider how a mixed approach with machine learning could be leveraged to optimize the mining of such rich datasets while also enabling the assessment of the dimensionality and topology of the spaces explored.
About this Series
The PAOC Colloquium [PAOCC] is a weekly interdisciplinary seminar series that brings together the whole PAOC community. Seminar topics include all research concerning the physics, chemistry, and biology of the atmospheres, oceans and climate, but also talks about e.g. societal impacts of climatic processes. The seminars take place on Monday from 12-1pm in 54-923. Lunch is provided after the seminars to encourage students and post-docs to meet with the speaker. Besides the seminar and lunch, individual meetings with professors, post-docs, and students are arranged. Contact the 2018/2019 Coordinators: paoc-colloquium-comm@mit.edu.
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