Christoffer Lundman defended his thesis on 20 December 2013. Title: Photospheric emission from structured, relativistic jets - applications to gamma-ray burst spectra and polarisation. Trita-FYS ISSN: 0280-316X; 2013:68, PhD Thesis, KTH Royal Institute of Technology.
An international research team that includes members from Sweden's KTH Royal Institute of Technology and Stockholm University has observed one of the most powerful cosmic explosions yet measured. The results are difficult to explain with any existing model, showing that we have a long way to go before understanding the most extreme events in our universe.