Liu, T (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China.
We present the effects of vertical convection on the structure and luminosity of the neutrino-dominated accretion flow (NDAF) around a stellar-mass black hole in spherical coordinates. We find that the convective energy transfer can suppress the radial advection in the NDAF and that the density, temperature, and opening angle are slightly changed.. As a result, the neutrino and annihilation luminosities are increased, which allows the energy requirement of gamma-ray bursts to be achieved.
National Basic Research Program of China (973 Program) [2014CB845800]
; National Natural Science Foundation of China [11222328, 11233006, 11333004, 11373002, 11473022, U1331101, U1431107]
; CAS Open Research Program of the Key Laboratory for the Structure and Evolution of Celestial Objects [OP201305]