Nonradial g-mode oscillations of warm neutron stars

Abstract

view Abstract Citations (110) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Nonradial g-mode oscillations of warm neutron stars McDermott, P. N. ; van Horn, H. M. ; Scholl, J. F. Abstract The adiabatic l =1 and 2 p, f, and g-mode oscillations of a numer of finite temperature neutron star models from the evolutionary sequences constructed by Richardson (1980) are compared. The general relativistic theory of spheroidal nonradial stellar oscillations is briefly reviewed, and an approximation termed the 'relativistic Cowling approximation' is introduced in analogy with its Newtonian counterpart. The resulting pulsation equations are solved in the limit of high spatial frequencies to obtain the local dispersion relation and to provide estimates of the periods of the p and g-mode oscillations. The numerical solutions of the full eigenvalue problem, still in Cowling approximation, are described. Calculations of p and f-mode periods, although the Cowling approximation is less satisfactory for these than for the g-modes, are included. The damping due to gravitational radiation for all modes, and due to neutrino emission for some of the modes, is estimated. Publication: The Astrophysical Journal Pub Date: May 1983 DOI: 10.1086/161006 Bibcode: 1983ApJ...268..837M Keywords: Hot Stars; Neutron Stars; Relativistic Theory; Stellar Models; Stellar Oscillations; Stellar Temperature; Adiabatic Equations; Approximation; Eigenvalues; Gravitational Waves; Neutrinos; Quadrupoles; Vibration Damping; Vibration Mode; Wave Dispersion; Astrophysics full text sources ADS |