Speaker
Mr
Nihar Ranjan Panda
(Institute of Physics)
Description
Compact stars such as neutron stars (NS) can have either hadronic or exotic states like strange quark or color superconducting matter. Stars also can have a quark core surrounded by hadronic matter, known as hybrid stars (HS). The HS is likely to have a mixed phase in between the hadron and quark phase. Observational results suggest huge surface magnetic field in certain neutron stars. Therefore,we study here the effect of strong magnetic field on the eigenfrequencies of radial pulsations of neutron star .The equations of state (EOS) used to estimate such eigenfrequencies have been derived by taking proper care of the hadron-quark phase transition. The hadronic matter EOS is described basing on RMF theory and we include the effect of strong magnetic fields leading to Landau quantization of the charged particles. For the quark phase we use the simple MIT bag model, assuming the density dependent bag pressure and magnetic field. The magnetic field strength increases going from the surface to the center of the star. We construct the intermediate mixed phase using Glendenning conjecture. We find the maximum mass for a hybrid star and in the presentation we will show the periods of oscillations of hybrid stars.
Author
Mr
Nihar Ranjan Panda
(Institute of Physics)
