Tag: #supernova

Fermi Detects Delayed Gamma Rays from Superluminous Supernova SN 2017egm, Supporting Magnetar Power Source

Fermi's LAT saw months-delayed GeV gamma rays from SN 2017egm, offering rare evidence the explosion was powered by a newborn magnetar.

#astronomy, #supernova, #gammarays, #magnetar

Preprint suggests two supernova remnants may accelerate cosmic rays to PeV energies

A LHAASO preprint reports gamma rays up to hundreds of TeV from two supernova remnants, which authors interpret as evidence they accelerated hadronic cosmic rays to PeV energies.

#cosmicrays, #lhaaso, #supernova, #gammarays, #astrophysics