Using LIGO O3 continuous-wave search data, the authors place the first constraints on ellipticities of self-interacting fermionic dark matter admixed neutron stars and exclude regions of the DM parameter space for masses in [0.1,10] GeV.
The Hough transform search for continuous gravitational waves
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abstract
This paper describes an incoherent method to search for continuous gravitational waves based on the Hough transform, a well known technique used for detecting patterns in digital images. We apply the Hough transform to detect patterns in the time-frequency plane of the data produced by an earth-based gravitational wave detector. Two different flavors of searches will be considered, depending on the type of input to the Hough transform: either Fourier transforms of the detector data or the output of a coherent matched-filtering type search. We present the technical details for implementing the Hough transform algorithm for both kinds of searches, their statistical properties, and their sensitivities.
representative citing papers
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citing papers explorer
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First Constraints on the Ellipticities of Self-Interacting Fermionic Dark Matter Admixed Neutron Stars from Continuous Gravitational-Wave Searches
Using LIGO O3 continuous-wave search data, the authors place the first constraints on ellipticities of self-interacting fermionic dark matter admixed neutron stars and exclude regions of the DM parameter space for masses in [0.1,10] GeV.
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GFH-v2 Pipeline for Searches of Long-Transient Gravitational Waves from Newborn Magnetars
GFH-v2 is an enhanced pipeline that improves sensitivity and computational performance for searching long-transient gravitational waves from newborn magnetars.
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An explicit and differentiable Wilson-Daubechies-Meyer transform for gravitational-wave data analysis
An explicit, GPU-ready WDM wavelet-packet package reproduces frequency-domain LISA galactic-binary posteriors under stationary noise and documents the full discrete construction.