Theoretical study of diffusion processes around a non-rotating neutron star

Conference of Theoretical Physics and Nonlinear Phenomena 2014: "From Universe to String's Scale"

Andra, D.^1,2 ; Rosyid, M.F.^1

Jurusan Fisika FMIPA Universitas Gadjah Mada, Yogyakarta, Indonesia^1

Jurusan Pendidikan MIPA FKIP Universitas Lampung, Bandar Lampung, Indonesia^2

关键词: Diffusion equations;    Diffusion process;    Diffusive particles;    Hyperbolic coordinate systems;    Neutron stars;    Parametrizations;    Stochastic dynamics;    Theoretical study;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/539/1/012005/pdf
DOI  :  10.1088/1742-6596/539/1/012005

来源: IOP

【 摘 要 】

The general relativistic diffusion process on curved space-time manifold around a non-rotating neutron star has been analyzed. The general relativistic diffusion equation of diffusive particles around non-rotating neutron star is derived by constructing phase space in the parametrization of observer time in the hyperbolic coordinate system. This diffusion equation describes the stochastic dynamic of particles around non-rotating neutron stars. In this work we also have studied the diffusion processes around a non-rotating neutron star for asymptotic case.