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Neutrino heating near hyper-accreting black holes

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arxiv 1003.0710 v3 pith:Q5AT2PGX submitted 2010-03-03 astro-ph.HE

Ivan Zalamea , Andrei M. Beloborodov (Columbia University) This is my paper · ORCID
classification astro-ph.HE
keywords neutrinoblackneutrinosaccretiondiscdiscsefficiencyheating
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abstract

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 $\nu\bar\nu\to e^+e^-$. This process may drive relativistic jets associated with 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.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Direct Measurement of the Accretion Disk Formed in Prompt Collapse Mergers with Future Gravitational-Wave Observatories

    gr-qc 2025-07 conditional novelty 7.0 of 10

    The postmerger ringdown frequency of promptly collapsing binary neutron star mergers is correlated with accretion disk mass, allowing a proposed 10 percent measurement with third-generation gravitational wave detectors.

  2. Neutrino pair annihilation driven jets from black-hole torus systems

    astro-ph.HE 2025-06 conditional novelty 5.0 of 10

    Neutrino pair annihilation in black hole-torus systems launches relativistic fireballs with isotropic energies up to about 10^51 erg and durations around 0.1 s, which can account for faint short GRBs and GRB precursors.

  3. On Accretion and Neutrino Investigations of Thermodynamically Reconstructed Black Holes from Three-Parameter Generalized Entropy

    gr-qc 2026-07 conditional novelty 4.0 of 10

    A generalized-entropy black-hole model with horizon temperature fixed by entropy predicts sign-controlled ISCO, shadow, and efficiency shifts, but relies on an arbitrary exterior profile p.

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