Ultra-High Energy Cosmic Rays and Neutrinos from Tidal Disruptions by Massive Black Holes

Autor: Ke Fang, Claire Guépin, Enrico Barausse, Kumiko Kotera, Kohta Murase
Přispěvatelé: Institut d'Astrophysique de Paris (IAP), Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Astrophysique Interprétation Modélisation (AIM (UMR_7158 / UMR_E_9005 / UM_112)), Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7), Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), ANR-16-CE31-0001,APACHE,Astroparticules et pulsars : connexions de basse à ultra-haute énergies(2016)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
astroparticle physics
neutrinos
Astrophysics::High Energy Astrophysical Phenomena
nucleus: energy
FOS: Physical sciences
Cosmic ray
Astrophysics
Astrophysics::Cosmology and Extragalactic Astrophysics
01 natural sciences
neutrino: flux
Luminosity
IceCube
neutrino: production
Settore FIS/05 - Astronomia e Astrofisica
star
0103 physical sciences
propagation
black hole
luminosity
Ultra-high-energy cosmic ray
cosmic radiation: UHE
010303 astronomy & astrophysics
cosmic radiation: production
Astroparticle physics
Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
energy: high
cosmic radiation: spectrum
010308 nuclear & particles physics
photon
Astronomy and Astrophysics
Light curve
redshift
Redshift
Auger
Black hole
13. Climate action
Space and Planetary Science
High Energy Physics::Experiment
Neutrino
Astrophysics - High Energy Astrophysical Phenomena
Yukawa
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
signature
Zdroj: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 616, pp.A179. ⟨10.1051/0004-6361/201732392⟩
Astronomy & Astrophysics
Astronomy and Astrophysics-A&A, 2018, 616, pp.A179. ⟨10.1051/0004-6361/201732392⟩
Astron.Astrophys.
Astron.Astrophys., 2018, 616, pp.A179. ⟨10.1051/0004-6361/201732392⟩
ISSN: 0004-6361
DOI: 10.1051/0004-6361/201732392⟩
Popis: Tidal disruptions are extremely powerful phenomena that have been designated as candidate sources of ultra-high-energy cosmic rays. The disruption of a star by a black hole can naturally provide protons and heavier nuclei, which can be injected and accelerated to ultra-high energies within a jet. Inside the jet, accelerated nuclei are likely to interact with a dense photon field, leading to a significant production of neutrinos and secondary particles. We model numerically the propagation and interactions of high-energy nuclei in jetted tidal disruption events in order to evaluate consistently their signatures in cosmic rays and neutrinos. We propose a simple model of the light curve of tidal disruption events, consisting of two stages: a high state with bright luminosity and short duration and a medium state, less bright and longer lasting. These two states have different impacts on the production of cosmic rays and neutrinos. In order to calculate the diffuse fluxes of cosmic rays and neutrinos, we model the luminosity function and redshift evolution of jetted tidal disruption events. We find that we can fit the latest ultra-high-energy cosmic-ray spectrum and composition results of the Auger experiment for a range of reasonable parameters. The diffuse neutrino flux associated with this scenario is found to be subdominant, but nearby events can be detected by IceCube or next-generation detectors such as IceCube-Gen2.
Comment: 16 pages, 10 figures, published in A&A, corrections to cosmic-ray and neutrino fluxes included (conclusions unchanged)
Databáze: OpenAIRE
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