| Title: | On the GeV Emission of the Type I BdHN GRB 130427A |
|---|
| Authors: | ID Ruffini, Remo (Author)
ID Moradi, Rahim (Author)
ID Rueda, Jorge Armando (Author)
ID Bianco, Carlo Luciano (Author)
ID Cherubini, Christian (Author)
ID Filippi, Simonetta (Author)
ID Chen, Yen-Chen (Author)
ID Karlica, Mile (Author)
ID Sahakyan, Narek (Author)
ID Wang, Yu (Author)
ID Xue, She Sheng (Author)
ID Beccera, Laura (Author) |
|---|
| Files: |
This document has no files that are freely available to the public. This document may have a physical copy in the library of the organization, check the status via COBISS.  |
|---|
| Language: | English |
|---|
| Work type: | Not categorized |
|---|
| Typology: | 1.01 - Original Scientific Article |
|---|
| Organization: | UNG - University of Nova Gorica
|
|---|
| Abstract: | 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 $\theta \ne 0$ 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 ${ \mathcal E }\sim {10}^{37}$ 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. |
|---|
| Keywords: | black hole physics, binaries, gamma-ray burst, neutron stars, supernovae, Astrophysics - High Energy Astrophysical Phenomena |
|---|
| Publication version: | Version of Record |
|---|
| Year of publishing: | 2019 |
|---|
| Number of pages: | 13 |
|---|
| Numbering: | 886, 2 |
|---|
| PID: | 20.500.12556/RUNG-5656 |
|---|
| COBISS.SI-ID: | 23009283 |
|---|
| DOI: | https://doi.org/10.3847/1538-4357/ab4ce6 |
|---|
| NUK URN: | URN:SI:UNG:REP:BXWOORI6 |
|---|
| Publication date in RUNG: | 20.07.2020 |
|---|
| Views: | 4459 |
|---|
| Downloads: | 0 |
|---|
| Metadata: |    |
|---|
|
:
|
Copy citation |
|---|
| | | | Average score: | (0 votes) |
|---|
| Your score: | Voting is allowed only for logged in users. |
|---|
| Share: |  |
|---|
Hover the mouse pointer over a document title to show the abstract or click
on the title to get all document metadata. |
