Final published version
Licence: CC BY
Research output: Contribution to Journal/Magazine › Letter › peer-review
Research output: Contribution to Journal/Magazine › Letter › peer-review
}
TY - JOUR
T1 - Evidence for a Minimum Ellipticity in Millisecond Pulsars
AU - Woan, G.
AU - Pitkin, M. D.
AU - Haskell, B.
AU - Jones, D. I.
AU - Lasky, P. D.
PY - 2018/8/21
Y1 - 2018/8/21
N2 - 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.
AB - 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.
UR - https://doi.org/10.3847/2041-8213/aad86a
U2 - 10.3847/2041-8213/aad86a
DO - 10.3847/2041-8213/aad86a
M3 - Letter
VL - 863
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
SN - 2041-8205
IS - 2
M1 - L40
ER -