Jul 5 – 10, 2021
Europe/Rome timezone

Probing the jet launching mechanism from prompt emission of GRBs

Jul 5, 2021, 5:10 PM
30m
Invited talk in the parallel session Photospheric Emission in GRBs Photospheric Emission in GRBs

Speaker

Ore Gottlieb (Tel Aviv University/CIERA)

Description

Despite years of extensive research, the launching mechanism and the nature of relativistic jets remain open questions. Using 3D RMHD simulations of GRB jets with different initial magnetizations and engine modulation timescales, we calculate the resulting prompt emission light curves by considering photospheric emission and internal shocks, and compare them with observations. Our results show that in order to reconstruct the observed high variability and efficiency of GRB light curves, the jets' degree of magnetization has to be at least ~1% and the central engine intermittency operates on ~10 ms timescales.

Primary author

Ore Gottlieb (Tel Aviv University/CIERA)

Co-authors

Prof. Ehud Nakar (Tel Aviv University) Prof. Amir Levinson (Tel Aviv University) Dr Omer Bromberg (Tel Aviv University)

Presentation materials

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