A5078578529- Pulsars and Gravitational Waves Research
- Astrophysical Phenomena and Observations
- Cosmology and Gravitation Theories
- Relativity and Gravitational Theory
- Experimental and Theoretical Physics Studies
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Quantum Electrodynamics and Casimir Effect
- Gas Dynamics and Kinetic Theory
- Heat Transfer Mechanisms
Universidad Michoacana de San Nicolás de Hidalgo
2021-2023
The accretion of a spherically symmetric, collisionless kinetic gas cloud onto Schwarzschild black hole is analyzed. Whereas previous studies have treated this problem by specifying boundary conditions at infinity, here the properties are given sphere finite radius. corresponding steady-state solutions computed using four different models with an increasing level sophistication, starting purely radial infall Newtonian particles and culminating fully general relativistic calculation in which...
We describe stationary and axisymmetric gas configurations surrounding black holes. They consist of a collisionless relativistic kinetic identical massive particles following bound orbits in Schwarzschild exterior spacetime are modeled by one-particle distribution function which is the product energy orbital inclination associated with particle's trajectory. The morphology resulting configuration analyzed.
The properties of a stationary gas cloud surrounding black hole are discussed, assuming that the consists collisionless, identical massive particles follow spatially bound geodesic orbits in Schwarzschild spacetime. Several models for one-particle distribution function considered, and essential formulae describe relevant macroscopic observables, like current density four-vector stress-energy-momentum tensor derived. This is achieved by rewriting these observables as integrals over constants...
Abstract The properties of an axisymmetric, stationary gas cloud surrounding a massive central object are discussed. It is assumed that the gravitational field dominated by which modeled nonrelativistic rotationally-symmetric potential. Further, we assume consists collisionless, identical particles follow bound orbits in this Several models for one-particle distribution function considered and essential formulae describe relevant macroscopical observables, such as particle energy densities,...
We use a simple form of the K-essence theory and apply it to classic isotropic cosmological model seek exact solutions. The particular kinetic term that we choose is $K \left(\phi, X \right)= K_0(\phi)X^m +K_1$. resulting field equations in homogeneous cosmology (FRW)is considered. Several solutions are obtained.
The properties of a stationary gas cloud surrounding black hole are discussed, assuming that the consists collisionless, identical massive particles follow spatially bound geodesic orbits in Schwarzschild spacetime. Several models for one-particle distribution function considered, and essential formulae describe relevant macroscopic observables, like current density four-vector stress-energy-momentum tensor derived. This is achieved by rewriting these observables as integrals over constants...
The properties of an axisymmetric, stationary gas cloud surrounding a massive central object are discussed. It is assumed that the gravitational field dominated by which modeled nonrelativistic rotationally-symmetric potential. Further, we assume consists collisionless, identical particles follow bound orbits in this Several models for one-particle distribution function considered and essential formulae describe relevant macroscopical observables, such as particle energy densities, pressure...