Dynamical properties of protoplanetary discs – results from exoALMA

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• Cristiano Longarini / IoA
• Wednesday 05 November 2025, 13:40-14:05
• Hoyle Lecture theatre + Zoom .

If you have a question about this talk, please contact Xander Byrne.

Recently, protoplanetary disc kinematics has gained significant interest, as it directly traces the disc structure, unveils planet-disc interactions, and tests the presence of hydrodynamical instabilities. exoALMA, an ALMA Large Program, is dedicated to characterizing the kinematics of planet-forming environments with unprecedented precision. In this talk, I will present the work carried out by the exoALMA collaboration, focusing on modelling rotation curves to constrain dynamical masses of stars and discs. Rotation curves have long been used in galactic astronomy to infer the presence of dark matter. In protoplanetary discs, thanks to the high spatial and spectral resolution of ALMA , they provide a powerful tool to probe the dynamical mass, revealing key properties of both the central star and the surrounding disc.

This talk is part of the Institute of Astronomy Seminars series.

This talk is included in these lists:

• Cambridge Astronomy Talks
• Combined External Astrophysics Talks DAMTP
• Cosmology lists
• Cosmology, Astrophysics and General Relativity
• Hoyle Lecture theatre + Zoom
• Institute of Astronomy Seminars
• Institute of Astronomy Talk Lists
• Kavli Institute for Cosmology Talk Lists
• Priscilla

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