Demographics of Young Stars and Their Protoplanetary Disks: An Observational Perspective on Disk Evolution
Location
This colloquium is hosted by STScI and will be held as a hybrid event.
Time
3:00 PM - 4:00 PM EDT
Description
The quest to understands how planet forms must pass through learning their natal environments, the protoplanetary disks.
Our knowledge of the global properties of protoplanetary disks and of young stars has dramatically improved in the last years. Near-complete surveys of multiple star-forming regions cover both spectroscopy of young stars and mm interferometry of their protoplanetary disks. This provides an unprecedented statistical sample of stellar masses and mass accretion rates, as well as disk masses and radii, for almost 1000 young stellar objects within 300 pc from us, while also sampling different evolutionary stages, ages, and environments.
In this seminar I will recap the statistics of these measured global star and disk properties, and present how these can be combined to test models of disk evolution.
I will then provide some overview of how these studies are being followed-up with explorations of further distant star-forming regions and combined efforts to better understand accretion and ejection mechanisms in disks.
Speaker: Carlo Manara
Notes
All 2022 Fall Colloquium talks are held on Wednesdays at 3:00 PM. You may join the colloquium in person at STScI’s John N. Bahcall Auditorium or virtually or at the links listed below.
- Facebook Link: https://www.facebook.com/STScILiveScienceEvents
- Live Captioning Link: https://www.streamtext.net/player?event=STSI-ColloqiumSeries
Please direct questions or comments to contact above. The Fall Colloquium Committee members are: JHU Members: Kevin Schlaufman, Co-Chair, Ethan Vishniac, Arshia Jacob and STScI Members: Joel Green, Co-chair, Armin Rest, Co-chair and Andreea Petric.