Woan, G. , Pitkin, M.D. , Haskell, B., Jones, D.I. and Lasky, P.D. (2018) Evidence for a minimum ellipticity in millisecond pulsars. Astrophysical Journal Letters, 863(2), L40. (doi: 10.3847/2041-8213/aad86a)
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Abstract
Neutron stars spin down over time due to a number of energy-loss processes. We provide tantalizing population-based evidence that millisecond pulsars (MSPs) have a minimum ellipticity of epsilon ≈ 10−9 around their spin axis and that, consequently, some spin down mostly through gravitational-wave emission. We discuss the implications of such a minimum ellipticity in terms of the internal magnetic field strengths and nuclear matter composition of neutron stars and show it would result in the Advanced LIGO and Virgo gravitational-wave detectors, or their upgrades, detecting gravitational waves from some known MSPs in the near future.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Woan, Professor Graham and Pitkin, Dr Matthew |
| Authors: | Woan, G., Pitkin, M.D., Haskell, B., Jones, D.I., and Lasky, P.D. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Research Centre: | College of Science and Engineering > School of Physics and Astronomy > Institute for Gravitational Research |
| Journal Name: | Astrophysical Journal Letters |
| Publisher: | American Astronomical Society |
| ISSN: | 2041-8205 |
| ISSN (Online): | 2041-8213 |
| Published Online: | 21 August 2018 |
| Copyright Holders: | Copyright © 2018 The American Astronomical Society |
| First Published: | First published in Astrophysical Journal Letters 863(2): L40 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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