Radial oscillations of neutron stars and strange stars

Details Radial oscillations of neutron stars and strange stars Radial oscillations of neutron stars and strange stars

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...260..250v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 260, no. 1-2, p. 250-254.

Astronomy and Astrophysics

Astrophysics

15

Neutron Stars, Radial Distribution, Stellar Oscillations, Density Distribution, Vibration Mode

Scientific paper

We have determined the two lowest frequency radial oscillation modes constructed for several equations of state. The results for neutron stars differ from those of Glass & Lindblom (1983). We find that the central density where omega0 exp 2 = 0 agrees in our calculations with that where the star reaches its maximal mass, as expected, but contrary to their calculations. The oscillation frequencies of strange stars have a qualitatively different dependence on the central density compared with the case of neutron stars, as the periods of all modes go to zero when the central density of the strange star approaches its smallest possible value.

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