The oscillations of rapidly rotating Newtonian stellar models. II - Dissipative effects

Abstract

view Abstract Citations (117) References (12) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Oscillations of Rapidly Rotating Newtonian Stellar Models. II. Dissipative Effects Ipser, James R. ; Lindblom, Lee Abstract A method is described for determining the dissipative effects of viscosity and gravitational radiation on the modes of rapidly rotating Newtonian stellar models. Integral formulae for the dissipative imaginary parts of the frequencies (i.e., the damping or growth times) of these modes are derived. These expressions are evaluated numerically to determine the angular-velocity dependence of these dissipative effects on the l = m f-modes of uniformly rotating polytropes. The importance of the gravitational-radiation driven secular instability in limiting the rotation rate of neutron stars is estimated using these results. Publication: The Astrophysical Journal Pub Date: May 1991 DOI: 10.1086/170039 Bibcode: 1991ApJ...373..213I Keywords: Neutron Stars; Rotating Plasmas; Stellar Models; Stellar Oscillations; Stellar Rotation; Angular Velocity; Computational Astrophysics; Gravitational Effects; Viscosity; Astrophysics; HYDRODYNAMICS; STARS: NEUTRON; STARS: PULSATION; STARS: ROTATION full text sources ADS |