C A van Eysden and A Melatos 2008 Class. Quantum Grav. 25 225020 doi:10.1088/0264-9381/25/22/225020
Gravitational radiation from pulsar glitches
C A van Eysden and A Melatos
Show affiliationsThe nonaxisymmetric Ekman flow excited inside a neutron star following a rotational glitch is calculated analytically including stratification and compressibility. For the largest glitches, the gravitational wave strain produced by the hydrodynamic mass quadrupole moment approaches the sensitivity range of advanced long-baseline interferometers. It is shown that the viscosity, compressibility and orientation of the star can be inferred in principle from the width and amplitude ratios of the Fourier peaks (at the spin frequency and its first harmonic) observed in the gravitational wave spectrum in the + and × polarizations. These transport coefficients constrain the equation of state of bulk nuclear matter, because they depend sensitively on the degree of superfluidity.
- PACS
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95.30.Cq Elementary particle processes
95.30.Sf Relativity and gravitation
- MSC
- Subjects
- Dates
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Issue 22 (21 November 2008)
Received 20 December 2007, in final form 8 September 2008
Published 3 November 2008
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Gravitational radiation from pulsar glitches
C A van Eysden and A Melatos 2008 Class. Quantum Grav. 25 225020
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