We study the effect of quark and nuclear matter mixed phase on the radial
oscillation modes of neutron stars. For this study we have considered recent
models from two classes of equations of state namely the relativistic mean
field theoretical models and models based on realistic nucleon-nucleon
interactions incorporating relativistic corrections and three body nuclear
interactions.Comment: 13 page Latex2e file including 4 eps figure
We study the effect of magnetic field on the dominant neutrino emission processes in neutron stars.The processes are first calculated for the case when the magnetic field does not exceed the critical value to confine electrons to the lowest Landau state.We then consider the more important case of intense magnetic field to evaluate the direct URCA and the neutronisation processes. In order to estimate the effect we derive the composition of cold nuclear matter at high densities and in beta equilibrium, a situation appropriate for neutron stars. The hadronic interactions are incorporated through the exchange of scalar and vector mesons in the frame work of relativistic mean field theory. In addition the effects of anomalous magnetic moments of nucleons are also considered. *
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