PRIMA Community Astronomy Science and Technology (P-CAST) Talks
We are excited to launch a new monthly talk series to keep the community informed about the exciting science potential at far-infrared wavelengths and prepare the community for the possibilities offered by PRIMA. Talk topics will broadly encompass past and future facilities, including overviews of science opportunities with PRIMA, instrumentation advances in the far-infrared, precursor science with current facilities, archival science with past far-infrared facilities, and synergies with current and planned multiwavelength facilities.
Talks will take place monthly and will be broadcast online. Recordings of past talks will be available here. If you are interested in giving a future talk, please e-mail the P-CAST organizer Betsy Mills.
Talk Schedule
Talks will typically occur on the fourth Monday of the month, except in cases of holidays.
Talks will occur at 9 A.M. Pacific / 12 P.M. Eastern / 6 P.M. CET
Protoplanetary disks are cradles of planet formation. These disks play a vital role in shaping fundamental properties of planetary systems, such as the number of rocky and giant planets, as well as the bulk compositions of planetary cores and primordial planetary atmospheres. Gas is the dominant mass constituent in protoplanetary disks, initially taking 99% of mass. Yet, it is still unclear how the gas mass evolves and what mechanism drives its evolution, which has become a major challenge in understanding planet formation processes. In this talk, I will discuss results from the ALMA survey of Gas Evolution in PROtoplanetary disks, AGE-PRO, an ALMA Cycle 8 large program. We collected deep ALMA observations of a comprehensive sample of 30 disks throughout the typical disk lifetime. Combining AGE-PRO observations and state-of-the-art thermo-chemical models, we provide accurate gas mass and size measurements of these disks. I will discuss how our results are compared with predictions from two leading theories of disk evolution: Turbulent viscosity and Magneto-hydrodynamical disk winds. Finally, I will show the JWST MIRI observations of the same sample, which provides important insight into the chemical evolution in the inner few au region.
Apr 28, 2025
Jochem Baselmans
(Netherlands Institute for Space Research, Leiden and Delft University of Technology)
May 19, 2025
Desika Narayanan
(University of Florida)
(Note: Talk will be on the third Monday of the month due to Memorial Day)
