GRB 221009A: the poster child for gamma-ray burst physics
Lauren Rhodes
TSI Fellow at McGill University

The deaths of massive stars are sometimes accompanied by the launch of highly relativistic and collimated jets. When these jets are pointed towards Earth, we can detect broadband radiation as the jet ploughs into the circum-burst medium creating shocks which we call the afterglow. While there is solid observational evidence that emission from multiple shocks contributes to the afterglow signature, detailed studies are hampered by a lack of early-time observations especially in the radio band. In this talk, I will present incredibly dense radio coverage of GRB 221009A, dubbed the ?brightest of all time?, in both time and frequency space starting at a couple of hours post-burst and lasting for 100s of days. I will demonstrate how our radio studies of this event have been combined with other wavebands to produce the most complete picture of a gamma-ray burst to date. Then I will show how we take these data and constrain the jet geometry, energetics, and acceleration physics as well as the accompanying supernova.

Date:	Jeudi, 14 novembre 2024
Time:	11:30
Where:	All
	Pavillon MIL A-2521