Speaker
Annika Rudolph
(DESY)
Description
Due to the large amounts of energy they release, the extremely luminous transients called Gamma-Ray Bursts (GRBs) are of great interest for high energy astroparticle physics. In the fireball internal shock
scenario, particle acceleration occurs in collisions between regions of
the jet with different Lorentz factors. Usually, the observed prompt
emission is attributed to synchrotron emission from accelerated electrons. However, if cosmic rays (baryons and nuclei of high energies)
are contained in the outflow, they will be co-accelerated with electrons
and interact with the photons fields, producing secondary neutrinos.
I will discuss the influence of the dynamics in the fireball evolution on the production of multiple astrophysical messengers (such as photons, cosmic rays and neutrinos) and review the impact of different models on the observed neutrino flux.
For the observed photon spectra I will be focussing on low luminosity GRBs, which have recently been discussed as possible sources of UHECR and might be observable with CTA.
Primary author
Annika Rudolph
(DESY)
Co-authors
Dr
Anatoli Fedynitch
(DESY)
Mr
Jonas Heinze
(Desy Zeuthen)
Dr
Walter Winter
(DESY)
Zeljka Bosnjak
(FER-University of Zagreb)
