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

Magnetically dominated outflow in GRB 080916C?

8 Jul 2024, 16:15
15m
Cascella (Aurum)

Cascella

Aurum

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

Speaker

Gregory Vereshchagin (ICRANet)

Description

One of the main arguments in favour of magnetically dominated outflows is the absence of photospheric component in their broad-band time-resolved spectra, with such notable example as GRB 080916C. Detection of subdominant thermal component in this GRB is actually consistent with the photosphere of ultrarelativistic baryonic outflow, deep in the coasting regime. Therefore, the magnetic dominance of the outflow is not required for the interpretation of this GRB.

Primary author

Co-authors

Damien Begue (Bar Ilan University) Liang Li (ICRANet, Piazza della Repubblica 10, I-65122 Pescara, Italy)

Presentation materials

There are no materials yet.