Stellar Forensics with Explosions: Supernovae, Gamma-Ray Bursts, and their Environments

Maryam Modjaz (New York University)

Long-duration gamma-ray bursts (GRBs) and Stripped Supernovae (SNe) are nature's most magnificent explosions from massive stars. While GRBs launch relativistic jets, Stripped SNe are core-collapse explosions whose progenitors have been stripped of their hydrogen and helium envelopes. Yet for over a decade, one of the key outstanding questions is what conditions lead to each kind of explosion in massive stripped stars.

I will present a number of comprehensive observational studies that probe the progenitor environments, their metallicities and the explosion parameters of SN with and without GRBs, as well as those of normal Stripped SN, with the goal of constraining their progenitor systems.

I will conclude with an outlook on how the most promising venues of research - using the many existing and upcoming innovative surveys such as PTF and

LSST - have and will shed new light on the diverse deaths of massive stars.