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Your search keyword '"Gu, Wei-Min"' showing total 2 results
Start Over Author "Gu, Wei-Min" Journal journal of astrophysics & astronomy
2 results on '"Gu, Wei-Min"'

1. Possible Outflow Formation in the Central Engine of GRBs.

Author

Liu, Tong, Gu, Wei-Min, and Lu, Ju-Fu

Subjects
*GAMMA ray bursts, *NEUTRINOS, *ACCRETION (Astrophysics), *ANNIHILATION reactions, *BLACK holes, *ASTROPHYSICS, *BINOMIAL distribution
Abstract

We investigate the vertical structure of neutrino-dominated accretion flows in spherical coordinates. In our calculation, the empty funnel along the rotation axis can naturally explain the neutrino annihilable ejection. The outflow is possible due to the positive Bernoulli function, and the luminosity of neutrino annihilation is enhanced by one or two orders of magnitude. [ABSTRACT FROM AUTHOR]

Published
2011
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2. Effects of Toroidal Magnetic Fields on the Thermal Instability of Thin Accretion Disks.

Author

Zheng, Sheng-Ming, Yuan, Feng, Gu, Wei-Min, and Lu, Ju-Fu

Subjects
*DISKS (Astrophysics), *ACCRETION (Astrophysics), *MAGNETIC fields, *RADIATION, *PRESSURE, *BLACK holes, *ASTROPHYSICS
Abstract

The standard thin disk model predicts that when the accretion rate is moderately high, the disk is radiation-pressure-dominated and thermally unstable. However, observations indicate the opposite, namely the disk is quite stable. We present an explanation in this work by taking into account the role of the magnetic field which was ignored in the previous analysis. [ABSTRACT FROM AUTHOR]

Published
2011
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