Résumé / Abstract Seminaire_IAP
« Gamma-ray bursts »

Frédéric Daigne

Gamma-ray bursts (GRBs) are short but powerful flashes of gamma-rays emitted at cosmological distance. They are followed by a rapidly fading afterglow observed from the gamma-ray to the radio range. GRBs are associated to ultra-relativistic jets emitted by a compact stellar-mass source (black hole or magnetar), formed after the gravitational collapse of a massive star or the merger of two compact objects. I will summarize the most recent observations of gamma-ray bursts and their afterglows, and discuss our current physical understanding of these extreme phenomena. I will also discuss future challenges in GRB studies, especially in the context of the emerging multi-messenger astronomy. Finally, I will present the SVOM project, a Chinese-French mission with a significant implication from IAP, that is devoted to GRB studies and to the multi-wavelength observation of transient phenomena.
vendredi 13 mai 2016 - 11:00
Amphithéâtre Henri Mineur, Institut d'Astrophysique de Paris
Page web du séminaire / Seminar's webpage