Nonlinear coupling network to simulate the development of the r-mode instability in neutron stars. I. Construction

Journal Article · Wed Dec 15 00:00:00 EST 2004 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.70.124017· OSTI ID:20698255

Brink, Jeandrew; Teukolsky, Saul A; Wasserman, Ira ^[1]

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1. Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14853 (United States)

R-modes of a rotating neutron star are unstable because of the emission of gravitational radiation. We explore the saturation amplitudes of these modes determined by nonlinear mode-mode coupling. Modelling the star as incompressible allows the analytic computation of the coupling coefficients. All couplings up to n=30 are obtained, and analytic values for the shear damping and mode normalization are presented. In a subsequent paper we perform numerical simulations of a large set of coupled modes.

• OSTI ID: 20698255
• Journal Information: Physical Review. D, Particles Fields, Vol. 70, Issue 12; Other Information: DOI: 10.1103/PhysRevD.70.124017; (c) 2004 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
COMPUTERIZED SIMULATION
COUPLING
EMISSION
GRAVITATIONAL RADIATION
INSTABILITY
NEUTRON STARS
NONLINEAR PROBLEMS
SHEAR