Jul 5 – 10, 2021
Europe/Rome timezone

Diffusive photospheres in gamma-ray bursts

Jul 5, 2021, 5:40 PM
30m
Talk in the parallel session Photospheric Emission in GRBs Photospheric Emission in GRBs

Speaker

Gregory Vereshchagin (ICRANet)

Description

Photospheric emission from relativistic outflows may originate in two different regimes: photon decoupling within the outflow or radiative diffusion. I will discuss observed thermal component in the early afterglows of gamma-ray bursts as emission from such diffusive photospheres. In addition, I will discuss implications of photon diffusion for dissipative models of GRBs.

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