Speaker
SHAMIM HAQUE MONDAL
(ALIAH UNIVERSITY)
Description
Global aspects of stellar object, such as the mass-radius elation, are determined by the equations of hydrostatic equilibrium,known as TOV(Tolman-Oppenheimer-Volkov) equations. A few exact solutions are known for a realistic pressure−density relation (equation of state,EOS) .These equations must be numerically solved to obtain the M−R relation. From EOS a family of different astronomical models parameterized by the central density ρc can be proposed.Recently Brussels-Montreal group developed unified EoS for cold catalysed nuclear matter: BSk19, BSk20 and BSk21 based on generalized Skyrme effective nucleon-nucleon interactions. Each of these EOS is unified that is it describes the crust and the core of a stellar object using the same Physical model. Analytical expressions for several related quantities that are required in different stellar object simulations: number fractions of electrons and muons in the stellar core, nucleon numbers per nucleus in the inner crust, and equivalent radii and shape parameters of the nuclei in the inner crust calculated based on these three EOS. After obtaining analytical representation for the basic characteristics’ of the models of cold dense matter, we are trying to study different macroscopic property of stars like entropy, electron transport, electrical conductivity etc in the star crust.
Primary author
SHAMIM HAQUE MONDAL
(ALIAH UNIVERSITY)
Co-author
Dr
MD. ABDUL KHAN
(ALIAH UNIVERSITY)
