Continuous Gravitational Waves from Isolated Galactic Neutron Stars in the Advanced Detector Era

Abstract

We consider a simulated population of isolated Galactic neutron stars. The rotational frequency of each neutron star evolves through a combination of electromagnetic and gravitational wave emission. The magnetic field strength dictates the dipolar emission, and the ellipticity (a measure of a neutron star's deformation) dictates the gravitational wave emission. Through both analytic and numerical means, we assess the detectability of the Galactic neutron star population and bound the magnetic field strength and ellipticity parameter space of Galactic neutron stars with or without a direct gravitational wave detection. While our simulated population is primitive, this work establishes a framework by which future efforts can be conducted.

Accepted for publication by Physical Review D, 8 pages, 5 figures

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• Optimal Template Banks
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• Deep exploration for continuous gravitational waves at 171--172 Hz in LIGO second observing run data
• Inferring neutron star properties with continuous gravitational waves
• Searching for gravitational waves with the LIGO and Virgo interferometers
• Optimizing StackSlide setup and data selection for continuous-gravitational-wave searches in realistic detector data
• Template banks based on ${\mathbb{Z}}^n$ and $A_n^{\ast }$ lattices
• Assessing the similarity of continuous gravitational-wave signals to narrow instrumental artifacts
• Population synthesis and parameter estimation of neutron stars with continuous gravitational waves and third-generation detectors
• Constraining the abundance of spinning deformed Galactic compact objects with continuous gravitational waves