Signatures of planet formation and orbital evolution in the cold dust emission of protoplanetary discs

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• Dr. Clément Baruteau (IRAP, Toulouse)
• Monday 02 December 2019, 14:00-15:00
• MR14, Centre for Mathematical Sciences, Wilberforce Road, Cambridge.

If you have a question about this talk, please contact Chris Hamilton.

The classical picture of protoplanetary discs being smooth, continuous structures of gas and dust has been challenged by the growing number of spatially resolved observations. These observations tell us that radial discontinuities and large-scale asymmetries are common features of the emission of protoplanetary discs, which are often interpreted as signatures of the presence of (unseen) planetary companions. During this seminar, I will report on our recent and ongoing work on how the formation and orbital evolution of planets impact the dust emission in protoplanetary discs, mainly at radio wavelengths. Through gas and dust hydrodynamical simulations post-processed with dust radiative transfer calculations, I will show that recent ALMA observations strongly suggest the presence of several planets in the discs around MWC 758 and HD 169142 .

This talk is part of the DAMTP Astrophysics Seminars series.

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