Feb 18 – 26, 2021
Online
Europe/Rome timezone

Neutrinos and UHECR from GRB internal shock scenarios

Feb 22, 2021, 10:40 AM
20m
Room 2 (https://unipd.link/NeuTel-ParallelRoom2)

Room 2

https://unipd.link/NeuTel-ParallelRoom2

Parallel Contributed Talk Neutrino Telescopes and Multimessenger Astrophysical Models

Speaker

Annika Rudolph (DESY Zeuthen)

Description

Gamma-Ray Bursts (GRBs) are among the brightest transients in our universe. Given the large amount of energy they release they have been long discussed as sources of ultra-high-energy cosmic rays (UHECR) - A hypothesis which is challenged by current IceCube neutrino limits. Assuming GRBs to power the UHECR flux, we study different engine realisations in multi-collision internal shock models and compute the in-source UHECR composition required to fit the observed spectra. Explicitly calculating the corresponding prompt and cosmogenic neutrino fluxes for the different scenarios, we show how (future) experiments might be used to discriminate between different scenarios and which parameter space is ruled out by neutrino observations.

Primary author

Annika Rudolph (DESY Zeuthen)

Co-authors

Walter Winter (DESY) Anatoli Fedynitch (DESY Zeutehn) denise boncioli (INFN Laboratori Nazionali del Gran Sasso) Jonas Heinze

Presentation materials