We know that protoplanetary disks surround many pre-main-sequence stars, but how these systems evolve into planetary systems is a fundamental question in astronomy. Multiwavelength studies of these variable young stars can provide insight into the conditions under which planets form. This talk will review key observations of protoplanetary disks and their young stars, focusing on multiwavelength observations. I will discuss variability in the high-energy radiation fields generated by the star and the accretion process and variability in the structure of the protoplanetary disk.  To conclude, I will discuss possibilities for future progress in multiwavelength time-domain studies of these young systems.

Astro Colloquium and 'coffee & cookies' department gathering (3:45-4:00pm)

Please join in 538 Davey or click the link to join: https://psu.zoom.us/j/93131536409