Relativistic global solutions of neutrino-dominated accretion flows

Abstract

Neutrino-dominated accretion flows (NDAFs) around rotating stellar-mass black holes are plausible candidates for the central engines of gamma-ray bursts (GRBs). We investigate one-dimensional global solutions of NDAFs, taking account of general relativity in Kerr metric, neutrino physics and nucleosynthesis more precisely than previous works. We calculate sixteen solutions with different characterized accretion rates and black hole spins to exhibit the radial distributions of various physical properties in NDAFs. \iffalse We find that the gas pressure and the neutrino cooling always become dominated in the inner region for large accretion rate, $\gtrsim 0.1M_{\odot }$ ${\mathrm{s}}^{-1}$. \fi We confirm that the electron degeneracy has important effects in NDAFs and we find that the electron fraction is about 0.46 in the outer region for all the sixteen solutions. From the perspective of the mass fraction, free nucleons, ${}^4\mathrm{He}$, and ${}^{56}\mathrm{Fe}$ dominate in the inner, middle, and outer region, respectively. The influence of neutrino trapping on the annihilation is of importance for the superhigh accretion ($\dot{M}=10M_{\odot }{\mathrm{s}}^{-1}$) and most of the sixteen solutions have an adequate annihilation luminosity for GRBs.

28 pages, 4 figures, 1 table, accepted for publication in ApJS

References in corpus (15)

• Neutrino-Cooled Accretion Disks around Spinning Black Hole
• Slim disks around Kerr black holes revisited
• Neutrino-Dominated Accretion Models for Gamma-Ray Bursts: Effects of General Relativity and Neutrino Opacity
• Neutrino pair annihilation near accreting, stellar-mass black holes
• Instabilities in the time-dependent neutrino disc in Gamma-Ray Bursts
• Magnetically Torqued Neutrino-Dominated Accretion Flows for Gamma-ray Bursts
• Jet Luminosity From Neutrino-Dominated Accretion Flows in Gamma-Ray Bursts
• Constraints on the Mass Accretion Rate of Neutrino-Cooled Disks in Gamma-Ray Bursts
• Radial Angular Momentum Transfer and Magnetic Barrier for Short-Type Gamma-Ray Burst Central Engine Activity
• Gravitational radiation from precessing accretion disks in gamma-ray bursts
• The vertical composition of neutrino-dominated accretion disks in gamma-ray bursts
• Vertical Structure of Neutrino Dominated Accretion Disks and Neutrino Transport in the disks
• Revisiting the hot matter in the center of gamma-ray bursts and supernova
• The propagation of neutrino-driven jets in Wolf-Rayet stars
• Proton-Rich Nuclear Statistical Equilibrium

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