Long-duration gamma-ray bursts (GRBs) are the most luminous sources of electromagnetic radiation known in the Universe. Although emission of gamma rays at teraelectronvolt (TeV) energies (trillion times more energetic than visible light) had been theoretically predicted, it was never observed before. With the first-time detection of the so-called GRB 190114C between 0.2 TeV and 1 TeV, MAGIC has opened a new era in the TeV gamma-ray domain.
The discovery of gamma-ray emission from GRB 190114C in the TeV window of the electromagnetic spectrum shows that the GRB explosions are even more powerful than thought before. The wealth of new data on GRB 190114C acquired by MAGIC and the extensive MWL follow-up observations now offer important clues to unravel some of the mysteries concerning the physical processes at work in GRBs
This breakthrough discovery has been published in two papers in the Nature journal: “Observation of Inverse Compton emission from a gamma ray burst’ and “Teraelectronvolt emission from a gamma-ray burst”. From FINCA Academy Fellow Elina Lindfors, Doctoral Candidate Vandad Fallah Ramazani and Researcher Kari Nilsson are among the authors of these papers. The firs paper also includes observations from Nordic Optical Telescope, which ownership is soon to be transferred to University of Turku and University of Aarhus.