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Author Kar, J.
Source Aryabhatta Research Institute of Observational Sciences (ARIES)
Content type Text
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics
Subject Keyword Composite stellar model
Abstract The unrestricted second-order virial tensor formalism has been used to calculate the characteristic frequencies of linear adiabatic oscillations of a composite stellar model having an isothermal core and a polytropic envelop in presence of a weak magnetic field. The frequencies of the transverse shear mode and the nonradial pulsation mode for both a radiative and a convective envelop (corresponding to polytropic index 3 and 1.5, res[ectively) alongwith that of the torodial mode for the radiative envelop get increased in presence of the magnetic field. However, the frequency of the toroidal mode for the convective envelop registers a decrease in presence of the field. The corrections to the various frequencies decrease with increasing values of the parameter characterizing the lowering of the core temperature in presence of the magnetic field.
Part of series ass133-29
Educational Use Research
Education Level UG and PG
Learning Resource Type Article