7–12 Jul 2024
Aurum, the ‘Gabriele d’Annunzio’ University and ICRANet
Europe/Rome timezone

Theory of photon scattering in shearing plasma: Applications to GRBs

8 Jul 2024, 15:15
15m
Cascella (Aurum)

Cascella

Aurum

Largo Gardone Riviera, Pescara, Italy
Invited talk in a parallel session Emission mechanisms in gamma-ray bursts Emission mechanisms in gamma-ray bursts

Speaker

Dr Mukesh Kumar Vyas (Bar Ilan University, Ramat Gan, Israel)

Description

We investigate the photon analogue of Fermi acceleration where a photon scatters within the shearing layers of a relativistic plasma and produces power-law-shaped spectra at high energies. It is an alternative to existing explanations of power law spectra such as synchrotron process or inverse Comptonization. Among several potential applications of this phenomenon, I will describe its application to Gamma-ray bursts (GRBs) jets where we explain the high energy spectra of the GRB prompt phase. I will briefly touch upon other applications to the work in Active Galactic nuclei (AGNs) jets as well as in accretion discs around black holes.

Primary author

Dr Mukesh Kumar Vyas (Bar Ilan University, Ramat Gan, Israel)

Co-author

Prof. Asaf Pe'er (Bar Ilan University, Ramat Gan, Israel)

Presentation materials

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