Crust-core coupling in rotating neutron stars

Abstract

Motivated by their gravitational-wave driven instability, we investigate the influence of the crust on r-mode oscillations in a neutron star. Using a simplistic model of an elastic neutron star crust with constant shear modulus, we carry out an analytic calculation with the main objective of deriving an expression for the ``slippage'' between the core and the crust. Our analytic estimates support previous numerical results, and provide useful insights into the details of the problem.

19 pages, 5 figures, RevTex, a significantly shorter version of the original paper to match the published version

References in corpus (2)

• How viscous is a superfluid neutron star core?
• R-modes of accreting hyperon stars as persistent sources of gravitational waves

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