Astronomy Colloquium - Catherine Espaillat

Image
ALMA image of a protoplanetary disk
February 25, 2021
3:00PM - 4:00PM
Location
ONLINE: Zoom Webinar

Date Range
Add to Calendar 2021-02-25 15:00:00 2021-02-25 16:00:00 Astronomy Colloquium - Catherine Espaillat Multiwavelength Accretion Variability in Young Stellar Objects Many pre-main-sequence stars are accreting material from their surrounding protoplanetary disks. How accretion occurs is a fundamental question in Astronomy. Multiwavelength variability studies can provide insight into how accretion proceeds and is tied to the inner disk. It has been clearly demonstrated that young stars are quite variable, particularly with respect to accretion. However, the connection between the star and the inner planet-forming regions of their protoplanetary disks is still largely unexplored, especially in the time domain. This talk will review multiwavelength variability observations of young stars and their protoplanetary disks. To conclude, I will discuss possibilities for future progress in time-domain studies of these young systems. Speaker: Catherine Espaillat (Boston University) ONLINE: Zoom Webinar Department of Astronomy astronomy@osu.edu America/New_York public
Description

Multiwavelength Accretion Variability in Young Stellar Objects

Many pre-main-sequence stars are accreting material from their surrounding protoplanetary disks. How accretion occurs is a fundamental question in Astronomy. Multiwavelength variability studies can provide insight into how accretion proceeds and is tied to the inner disk. It has been clearly demonstrated that young stars are quite variable, particularly with respect to accretion. However, the connection between the star and the inner planet-forming regions of their protoplanetary disks is still largely unexplored, especially in the time domain. This talk will review multiwavelength variability observations of young stars and their protoplanetary disks. To conclude, I will discuss possibilities for future progress in time-domain studies of these young systems.

Speaker: Catherine Espaillat (Boston University)

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