Josefin Larsson is a Professor of Astrophysics and Deputy Head of the Physics Department at KTH. She is also a Wallenberg Scholar. She obtained her MSc at Lund University, a PhD at the University of Cambridge and a postdoc at Stockholm University. Larsson’s research deals with some of the most extreme phenomena in the universe; powerful stellar explosions like supernovae and gamma-ray bursts, and the compact objects that they leave behind. She investigates fundamental open questions regarding these phenomena, including how the explosions are triggered, as well as how the properties of the compact objects (neutron stars and black holes) are connected to the properties of the progenitor stars and explosions. Together with her research group, Josefin Larsson addresses these questions by analysing observations that cover most of the electromagnetic spectrum.
Josefin Larsson is part of the 2025 2nd Semester cohort at STIAS.