Modeling the Galactic Neutron Star Population for Use in Continuous Gravitational-wave Searches

@article{Reed2021ModelingTG,
  title={Modeling the Galactic Neutron Star Population for Use in Continuous Gravitational-wave Searches},
  author={Brendan T. Reed and Alex Deibel and C. J. Horowitz},
  journal={The Astrophysical Journal},
  year={2021},
  volume={921}
}
Searches for continuous gravitational waves (GW) from unknown Galactic neutron stars provide limits on the shapes of neutron stars. A rotating neutron star will produce GW if asymmetric deformations exist in its structure that are characterized by the star’s ellipticity. In this study, we use a simple model of the spatial and spin distribution of Galactic neutron stars to estimate the total number of neutron stars probed, using GW, to a given upper limit on the ellipticity. This may help… 
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References

SHOWING 1-10 OF 25 REFERENCES
Gravitational Waves from Neutron Stars: A Review
  • P. Lasky
  • Physics
    Publications of the Astronomical Society of Australia
  • 2015
Abstract Neutron stars are excellent emitters of gravitational waves. Squeezing matter beyond nuclear densities invites exotic physical processes, many of which violently transfer large amounts of
Modelling neutron star mountains
As the era of gravitational-wave astronomy has well and truly begun, gravitational radiation from rotating neutron stars remains elusive. Rapidly spinning neutron stars are the main targets for
Intermediate-Mass-Elements in Young Supernova Remnants Reveal Neutron Star Kicks by Asymmetric Explosions
The birth properties of neutron stars yield important information on the still debated physical processes that trigger the explosion and on intrinsic neutron-star physics. These properties include
Deformations of accreting neutron star crusts and gravitational wave emission
Motivated by the remarkably narrow range of measured spin frequencies of ∼20 accreting (and weakly magnetic) neutron stars in the Galaxy, Bildsten conjectured that their spin-up had been halted by
Evidence for a Minimum Ellipticity in Millisecond Pulsars
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
First search for gravitational waves from known pulsars with advanced LIGO
We present the result of searches for gravitational waves from 200 pulsars using data from the first observing run of the Advanced LIGO detectors. We find no significant evidence for a
The Einstein Telescope: a third-generation gravitational wave observatory
Advanced gravitational wave interferometers, currently under realization, will soon permit the detection of gravitational waves from astronomical sources. To open the era of precision gravitational
Galactic neutron stars - I. Space and velocity distributions in the disk and in the halo
Aims. Neutron stars (NSs) produced in the Milky Way are supposedly ten to the eighth – ten to the ninth – of which only ∼2 × 10 3 are observed. Constraining the phase space distribution of NSs may
Spin evolution of neutron stars in two modes: implication for millisecond pulsars
An understanding of spin frequency (ν) evolution of neutron stars in the low-mass X-ray binary (LMXB) phase is essential to explain the observed ν-distribution of millisecond pulsars (MSPs), and to
A Radio Pulsar Spinning at 716 Hz
TLDR
A 716-hertz eclipsing binary radio pulsar in the globular cluster Terzan 5 using the Green Bank Telescope is discovered, it is the fastest spinning neutron star found to date, and constrains models that suggest that gravitational radiation, through an r-mode (Rossby wave) instability, limits the maximum spin frequency of neutron stars.
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