Scientific Seminars

Scientific prospects for spectroscopy of the GRB prompt emission with SVOM

Maria Grazia Bernardini
Laboratoire Univers et Particules de Montpellier

2016-07-13    11:00    Merate - POE

SVOM (Space-based multiband astronomical Variable Objects Monitor) is a Chinese-French space mission dedicated to the study of Gamma-Ray Bursts (GRBs) in the next decade. The SVOM mission encompasses a satellite carrying four instruments to detect and localize the prompt GRB emission and measure the evolution of the afterglow in the visible band and in X- rays, and a ground segment including a wide angle camera and two follow-up telescopes. The satellite carries two wide field high energy instruments: a coded-mask gamma-ray imager (ECLAIRs; 4-150 keV), and a gamma-ray spectrometer (GRM; 15-5500 keV), that will be extremely valuable to fully characterize the GRB spectral shape over a wide energy range. We will describe how the excellent performance of the ECLAIRs and GRM instruments, in particular the low energy threshold of 4 keV and the high sensitivity at MeV energies, will permit to constrain the spectral parameters of the GRB prompt emission with good precision, providing direct insights on the emission mechanisms responsible for the prompt emission.