Journal Article

PUBDB-2020-01586

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Impact of the collision model on the multimessenger emission from gamma-ray burst internal shocks

Rudolph, A. (Corresponding author)DESY* ; Heinze, J.DESY* ; Fedynitch, A. ; Winter, W.DESY*

2020
Institute of Physics Publ. London

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Please use a persistent id in citations: doi:10.3847/1538-4357/ab7ea7  doi:10.3204/PUBDB-2020-01586

Report No.: DESY-20-068; arXiv:1907.10633

Abstract: We discuss the production of multiple astrophysical messengers (neutrinos, cosmic rays, gamma-rays) in the Gamma-Ray Burst (GRB) internal shock scenario, focusing on the impact of the collision dynamics between two shells on the fireball evolution. In addition to the inelastic case, in which plasma shells merge when they collide, we study the Ultra Efficient Shock scenario, in which a fraction of the internal energy is re-converted into kinetic energy and, consequently, the two shells survive and remain in the system. We find that in all cases, a quasi-diffuse neutrino flux from GRBs at the level of 10$^{-11}$ $-$ 10$^{-10}$ GeV cm$^{-2}$s$^{-1}$sr$^{-1}$ (per flavor) is expected for protons and a baryonic loading of 10, which is potentially within the reach of IceCube-Gen2. The highest impact of the collision model for multi-messenger production is observed for the Ultra Efficient Shock scenario, that promises high conversion efficiencies from kinetic to radiated energy. However, the assumption that the plasma shells separate after a collision and survive as separate shells within the fireball is found to be justified too rarely in a multicollision model that uses hydrodynamical simulations with the PLUTO code for individual shell collisions.

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Contributing Institute(s):

1. Theoretische Astroteilchenphysik (Z_THAT)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF3-613) (POF3-613)
2. NEUCOS - Neutrinos and the origin of the cosmic rays (646623) (646623)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2020

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Rudolph, A.DESY* ; Heinze, J. (Corresponding author)DESY* ; Fedynitch, A.DESY* ; Winter, W.DESY*
Impact of the collision model on the multi-messenger emission from Gamma-Ray Burst internal shocks
[10.3204/PUBDB-2019-04162]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

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