Early Radio Observations of Supernovae - Lessons From Current Time-domain Surveys

Assaf Horesh , John Carpenter, Shri Kulkarni (Caltech)

Chris Stockdale (Marquette University)

Derek Fox (Penn State)

Dale Frail (NRAO)

Early radio observations of supernovae - lessons from current time-domain surveys

 The field of time domain is going through a revolution. Not only that the current large optical transient surveys allow the discovery of a plethora of supernovae, but an increasing number of supernovae are discovered at a young age, a few hours to a day after explosion. Combined with the new capabilities of radio observatories such as the Jansky Very Large Array, this enables a comprehensive pan-wavelength study of supernovae at an early stage. I will review our results from early radio observations of supernovae in the last year. In short, through our campaign, we were able to rule out a subset of type Ia supernova progenitors, learn about the microphysical parameters of type IIb supernova shockwaves and discover a fast evolving radio supernova. These latest results bode well for future studies of young supernovae discovered by LSST.

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