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Naslov:On the GeV Emission of the Type I BdHN GRB 130427A
Avtorji:ID Ruffini, Remo (Avtor)
ID Moradi, Rahim (Avtor)
ID Rueda, Jorge Armando (Avtor)
ID Bianco, Carlo Luciano (Avtor)
ID Cherubini, Christian (Avtor)
ID Filippi, Simonetta (Avtor)
ID Chen, Yen-Chen (Avtor)
ID Karlica, Mile (Avtor)
ID Sahakyan, Narek (Avtor)
ID Wang, Yu (Avtor)
ID Xue, She Sheng (Avtor)
ID Beccera, Laura (Avtor)
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:We propose that the inner engine of a type I binary-driven hypernova (BdHN) is composed of Kerr black hole (BH) in a non-stationary state, embedded in a uniform magnetic field B_0 aligned with the BH rotation axis and surrounded by an ionized plasma of extremely low density of 10^−14 g cm−3. Using GRB 130427A as a prototype, we show that this inner engine acts in a sequence of elementary impulses. Electrons accelerate to ultrarelativistic energy near the BH horizon, propagating along the polar axis, θ = 0, where they can reach energies of ~10^18 eV, partially contributing to ultrahigh-energy cosmic rays. When propagating with θ≠0 through the magnetic field B_0, they produce GeV and TeV radiation through synchroton emission. The mass of BH, M = 2.31M ⊙, its spin, α = 0.47, and the value of magnetic field B_0 = 3.48 × 10^10 G, are determined self consistently to fulfill the energetic and the transparency requirement. The repetition time of each elementary impulse of energy E∼1037 erg is ~10^−14 s at the beginning of the process, then slowly increases with time evolution. In principle, this "inner engine" can operate in a gamma-ray burst (GRB) for thousands of years. By scaling the BH mass and the magnetic field, the same inner engine can describe active galactic nuclei.
Ključne besede:black hole physics, binaries, gamma-ray burst, neutron stars, supernovae, Astrophysics - High Energy Astrophysical Phenomena
Verzija publikacije:Objavljena publikacija
Leto izida:2019
Št. strani:13
Številčenje:886, 2
PID:20.500.12556/RUNG-5656 Novo okno
COBISS.SI-ID:23009283 Novo okno
DOI:https://doi.org/10.3847/1538-4357/ab4ce6 Novo okno
NUK URN:URN:SI:UNG:REP:BXWOORI6
Datum objave v RUNG:20.07.2020
Število ogledov:4190
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
RUFFINI, Remo, MORADI, Rahim, RUEDA, Jorge Armando, BIANCO, Carlo Luciano, CHERUBINI, Christian, FILIPPI, Simonetta, CHEN, Yen-Chen, KARLICA, Mile, SAHAKYAN, Narek, WANG, Yu, XUE, She Sheng in BECCERA, Laura, 2019, On the GeV Emission of the Type I BdHN GRB 130427A. The Astrophysical Journal [na spletu]. 2019. Vol. 886, no. 2. [Dostopano 7 april 2025]. DOI https://doi.org/10.3847/1538-4357/ab4ce6. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=5656
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Gradivo je del revije

Naslov:The Astrophysical Journal
Založnik:The American Astronomical Society
Leto izida:2019

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