Acceleration of ultra-high-energy cosmic rays by local supermassive black hole candidates
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F22%3AA0000246" target="_blank" >RIV/47813059:19630/22:A0000246 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21670/22:00373860
Result on the web
<a href="https://pos.sissa.it/395/471" target="_blank" >https://pos.sissa.it/395/471</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.22323/1.395.0471" target="_blank" >10.22323/1.395.0471</a>
Alternative languages
Result language
angličtina
Original language name
Acceleration of ultra-high-energy cosmic rays by local supermassive black hole candidates
Original language description
The origin and acceleration mechanism of ultra-high-energy cosmic rays (UHECR) with energy exceeding the GZK-cutoff limit remain unknown. It is often speculated that supermassive black holes (SMBHs) located at the centers of many galaxies can serve as possible sources of UHECR. This is also supported by recent observations of high-energy neutrinos from blazar, as neutrinos are the tracers of UHECR. In this contribution, we explore the capabilities of nearby SMBHs (located within 100Mpc distance) to accelerate UHECR of certain energy and composition by the novel, ultra-efficient regime of the magnetic Penrose process, in which protons and ions are energized near SMBH by the ionization or decay of low-energy neutral particles, such as e.g. a hydrogen ionization or neutron beta-decay. Extreme conditions around SMBHs increase chances for engagement of the accelerated UHECR in the production of the cosmic ray ensembles (CRE), i.e. a group of correlated two or more cosmic ray particles, including photons with the same parent particle or a common primary interaction vertex. We discuss the unique signatures of UHECR and CRE produced around SMBHs and potentially observable with a global network of detectors, as proposed by the Cosmic-Ray Extremely Distributed Observatory - CREDO.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
<a href="/en/project/EF16_019%2F0000766" target="_blank" >EF16_019/0000766: Engineering applications of microworld physics</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of Science
ISBN
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ISSN
1824-8039
e-ISSN
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Number of pages
9
Pages from-to
„471-1“-„471-9“
Publisher name
Sissa Medialab Srl
Place of publication
Itálie
Event location
Berlin
Event date
Jul 12, 2021
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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