Neutrino heating near hyper-accreting black holes
By I. Zalamea, A. Beloborodov. 2010
145 citations recorded by the source corpus.
Hyper-accretion discs around black holes emit copious neutrinos and anti-neutrinos. A fraction of the emitted neutrinos convert to electron–positron plasma above the disc through the annihilation reaction ν ¯ ν → e + e − . This process may drive relativistic jets associated with gamma-ray bursts (GRB) explosions. We calculate the efficiency of energy deposition by neutrinos. Our calculation is fully relativistic and based on a geodesic-tracing method. We find that the efficiency of neutrino heating is a well-defined function of (i) accretion rate and (ii) spin of the black hole. It is practically independent of the details of neutrino transport in the opaque zone of the disc. The results help identify accretion discs whose neutrino emission can power GRBs.
Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/d831bfd247dcbc2f43fccb0a1a8db98867232978
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Astronomy and Astrophysics
In Nuclear and High Energy Physics
Citations in the corpus
- The physics of gamma-ray bursts & relativistic jets (2014, unknown): “The annihilation power (Zalamea and Beloborodov, 2011; Lei et al., 2013) Ėνν̄ ' 1.1× 1052 erg s−1 ( M M )−3/2 ( Ṁ M /s )9/4 (243) launches an outflow with luminosity of order given by the above equation.”
- Neutrino-dominated accretion flows as the central engine of gamma-ray bursts (2017, methodology): “Another well-known analytic formula of neutrino annihilation luminosity is given by Zalamea & Beloborodov (2011), which is expressed as Lνν̄ ≈ 5.7 × 1052 x−4.8ms m−3/2 × { 0 for ṁ < ṁign ṁ9/4 for ṁign < ṁ < ṁtrap ṁ 9/4 trap for ṁ > ṁtrap } erg s−1, (51) where xms = rms/rg is the…”