Stripped envelope supernovae (SE-SNe), specifically Type Ib, Ic, and Ic-BL, are the deaths of massive stars that have shed their outer hydrogen and sometimes helium envelopes prior to explosion. Among these, Type Ic-BL events (broad-lined Ic) are distinguished by their exceptionally high ejecta velocities. A subset of Ic-BL SNe are related to long-duration gamma-ray bursts, making them among the most energetic and extreme phenomena in the universe. Understanding what drives this association, and why only some Ic-BL SNe produce GRBs, is one of the open questions in high-energy astrophysics.
I work on radio and X-ray observations of stripped envelope supernovae, with my current focus on Ic-BL SNe: exploring the diversity among them and understanding how they relate to other stripped envelope supernovae. Radio and X-ray radiation give us information beyond what optical provides, serving as probes of density and circumstellar medium structure, and offering evidence for the presence of jets or a central engine. They also encode the mass-loss history of the progenitor system, which is key to understanding what kind of star exploded.