Claes Fransson

TL;DR: In this article, different physical processes involved in supernova interaction, including hydrodynamics, thermal X-ray emission, acceleration of relativistic particles and non-emission processes in the radio and Xray ranges are reviewed.

TL;DR: In this paper, the authors investigate constraints on explosive conditions derived from measured amounts of nickel and iron after radioactive decays using nucleosynthesis networks with parameterized thermodynamic trajectories.

TL;DR: In this paper, the radio and X-ray observations of the Type Ic supernova SN 2002ap were modeled and it was shown that inverse Compton cooling by photospheric photons explains the observed steep radio spectrum, and also the Xray flux observed by XMM, and that the energy densities of magnetic fields and relativistic electrons are close to equipartion.

TL;DR: A class of rare and energetic superluminous supernovae (SLSN-I) have been discovered in untargeted transient surveys in the past decade as discussed by the authors.

TL;DR: In this article, the authors present an optical spectrum of SN 2011fe taken 1034 d after the explosion, several hundred days later than any other spectrum of a Type Ia supernova (disregarding light-echo spectra and Local Group remnants).