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Recovering Pulsar Braking Index from a Population of Millisecond Pulsars
A. L. Hewitt, M. Pitkin, I. M. Hook
The braking index, , of a pulsar is a measure of its angular momentum loss and the value it takes corresponds to different spin-down mechanisms. For a pulsar spinning down due t…
All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1130
We present results of an all-sky search for continuous gravitational waves (CWs), which can be produced by fast-spinning neutron stars with an asymmetry around their rotation axis,…
Evidence for a minimum ellipticity in millisecond pulsars
G. Woan, M. D. Pitkin, B. Haskell +2
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 elliptic…
Reduced order modelling in searches for continuous gravitational waves - I. Barycentering time delays
M. Pitkin, S. Doolan, L. McMenamin +1
The frequencies and phases of emission from extra-solar sources measured by Earth-bound observers are modulated by the motions of the observer with respect to the source, and throu…
First results and future prospects for dual-harmonic searches for gravitational waves from spinning neutron stars
M. Pitkin, C. Gill, D. I. Jones +2
We investigate a method to incorporate signal models that allow an additional frequency harmonic in searches for gravitational waves from spinning neutron stars. We assume emission…
Glitch or Anti-Glitch: a Bayesian View
Yi-Ming Hu, Matthew Pitkin, Ik Siong Heng +1
The sudden spin-down in the rotation of magnetar 1E 2259+586 observed by Archibald et al. (2013) was a rare event. However this particular event, referred to as an anti-glitch, was…