B. Datta et al., RADIAL MODES OF ROTATING NEUTRON-STARS IN THE CHANDRASEKHAR-FRIEDMAN FORMALISM, International journal of modern physics D, 7(1), 1998, pp. 49-59
Eigenfrequencies of radial pulsations of ''slowly'' rotating neutron s
tars are calculated in a general relativistic formalism given by Chand
rasekhar & Friedman. It is found that the square of the frequencies ar
e always a decreasing function of the central density of the neutron s
tar. The decrease of the squared frequency is sensitive to the equatio
n of state of neutron star matter, and is illustrated using realistic
models.