Journal Article

Continuous-wave gravitational radiation from pulsar glitch recovery

M. F. Bennett, C. A. van Eysden and A. Melatos

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 409, issue 4, pages 1705-1718
Published in print December 2010 | ISSN: 0035-8711
Published online December 2010 | e-ISSN: 1365-2966 | DOI:
Continuous-wave gravitational radiation from pulsar glitch recovery

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Non-axisymmetric, meridional circulation inside a neutron star, excited by a glitch and persisting throughout the post-glitch relaxation phase, emits gravitational radiation. Here, it is shown that the current quadrupole contributes more strongly to the gravitational wave signal than the mass quadrupole evaluated in previous work. We calculate the signal-to-noise ratio for a coherent search and conclude that a large glitch may be detectable by second-generation interferometers like the Laser Interferometer Gravitational-Wave Observatory. It is shown that the viscosity and compressibility of bulk nuclear matter, as well as the stratification length-scale and inclination angle of the star, can be inferred from a gravitational wave detection in principle.

Keywords: dense matter; gravitational waves; hydrodynamics; stars: neutron; pulsars: general; stars: rotation

Journal Article.  9452 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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