Speaker
Description
Some accreting neutron stars may produce near-Eddington luminosity. In general relativity, the atmosphere of a sufficiently luminous neutron star is disconnected from and levitates above its surface. The atmosphere is centered at a radius where the gravitational and radiation forces balance each other. On the other hand, in a number of space-time metrics in the case of naked singularities, there is a sphere within which gravity is repulsive. So any accreting matter does not reach the singularity and hovers over it. A levitating atmosphere can also be formed here entirely supported by gravity. We aim to simulate both these atmospheres using the KORAL code in order to obtain stationary solutions. The simulation with neutron star is with radiation, whereas the one with naked singularity is without radiation. We aim to compare these simulations.