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This document describes a code to perform parameter estimation and model selection in targeted searches for continuous gravitational waves from known pulsars using data from ground-based gravitational wave detectors. We describe the general…

广义相对论与量子宇宙学 · 物理学 2017-05-26 Matthew Pitkin , Maximiliano Isi , John Veitch , Graham Woan

We present a novel semicoherent targeted search method for continuous gravitational waves (CWs) emitted by pulsars in binary systems. The method is based on a custom optimization of the coherence time, which is tailored according to the…

Rapidly rotating, slightly non-axisymmetric neutron stars emit nearly periodic gravitational waves (GWs), quite possibly at levels detectable by ground-based GW interferometers. We refer to these sources as "GW pulsars". For any given sky…

广义相对论与量子宇宙学 · 物理学 2015-05-27 Curt Cutler

Continuous gravitational waves are nearly monochromatic signals emitted by asymmetries in rotating neutron stars. These signals have not yet been detected. Deep all-sky searches for continuous gravitational waves from isolated neutron stars…

广义相对论与量子宇宙学 · 物理学 2022-04-27 P. B. Covas , M. A. Papa , R. Prix , B. J. Owen

In the search for binary systems inspiral signal in interferometric gravitational waves detectors, one needs the generation and placement of a grid of templates. We present an original technique for the placement in the associated parameter…

广义相对论与量子宇宙学 · 物理学 2009-11-11 F. Beauville , D. Buskulic , R. Flaminio , R. Gouaty , D. Grosjean , F. Marion , B. Mours , E. Tournefier , D. Verkindt , M. Yvert

We present a practical implementation of a phase-coherent mapping technique for pulsar timing arrays that resolves the full complex polarisation state of the gravitational-wave sky as a function of direction and frequency. Unlike standard…

高能天体物理现象 · 物理学 2026-04-22 Małgorzata Curyło , Eric Thrane , Paul D. Lasky , Dawson S. Gaynor

Using relative stellar astrometry for the detection of coherent gravitational wave sources is a promising method for the microhertz range, where no dedicated detectors currently exist. Compared to other gravitational wave detection…

天体物理仪器与方法 · 物理学 2025-06-25 Benjamin Zhang , Kris Pardo , Yijun Wang , Luke Bouma , Tzu-Ching Chang , Olivier Doré

We describe a new method for extracting gravitational wave signals from pulsar timing data. We show that any gravitational wave signal can be decomposed into an orthogonal set of sky maps, with the number of maps equal to the number of…

广义相对论与量子宇宙学 · 物理学 2014-06-20 Neil J. Cornish , Rutger van Haasteren

A search for periodic gravitational-wave signals from isolated neutron stars in the NAUTILUS detector data is presented. We have analyzed half a year of data over the frequency band $<922.2; 923.2>$ Hz, the spindown range…

Pulsar Timing Array (PTA) experiments exploit the clock-like behaviour of an array of millisecond pulsars, with the goal of detecting low-frequency gravitational waves. PTA experiments have been in operation over the last decade, led by…

天体物理仪器与方法 · 物理学 2018-03-28 Caterina Tiburzi

We investigate the computational requirements for all-sky, all-frequency searches for gravitational waves from spinning neutron stars, using archived data from interferometric gravitational wave detectors such as LIGO. These sources are…

广义相对论与量子宇宙学 · 物理学 2011-05-05 Patrick R. Brady , Teviet Creighton , Curt Cutler , Bernard F. Schutz

Rapidly rotating neutron stars are promising sources of continuous gravitational waves for the LIGO and Virgo observatories. The majority of neutron stars in our galaxy have not been identified with electromagnetic observations. Blind…

天体物理仪器与方法 · 物理学 2019-05-06 Sinead Walsh , Karl Wette , Maria Alessandra Papa , Reinhard Prix

In the hierarchical search for periodic sources of gravitational waves, the candidate selection, in the incoherent step, can be performed with Hough transform procedures. In this paper we analyze the problem of sensitivity loss due to…

广义相对论与量子宇宙学 · 物理学 2008-11-26 F. Antonucci , P. Astone , S. D' Antonio , S. Frasca , C. Palomba

Supermassive black hole binaries are one of the primary targets for gravitational wave searches using pulsar timing arrays. Gravitational wave signals from such systems are well represented by parametrized models, allowing the standard…

天体物理仪器与方法 · 物理学 2016-01-25 Yan Wang , Soumya D. Mohanty , Fredrick A. Jenet

We consider the problem of searching for continuous gravitational wave sources orbiting a companion object. This issue is of particular interest because the LMXB's, and among them Sco X-1, might be marginally detectable with 2 years…

广义相对论与量子宇宙学 · 物理学 2009-12-31 Sanjeev V. Dhurandhar , Alberto Vecchio

Searches for continuous gravitational waves from known pulsars so far have been targeted at or near the spin frequency or double the spin frequency of each pulsar, appropriate for mass quadrupole emission. But some neutron stars might…

广义相对论与量子宇宙学 · 物理学 2019-09-18 Santiago Caride , Ra Inta , Benjamin J. Owen , Binod Rajbhandari

In searches for gravitational waves emitted by known isolated pulsars in data collected by a detector one can assume that the frequency of the wave, its spindown parameters, and the position of the source in the sky are known, so the almost…

广义相对论与量子宇宙学 · 物理学 2015-05-18 Piotr Jaranowski , Andrzej Królak

We describe several new techniques which accelerate Bayesian searches for continuous gravitational-wave emission from supermassive black-hole binaries using pulsar timing arrays. These techniques mitigate the problematic increase of…

广义相对论与量子宇宙学 · 物理学 2014-11-25 Stephen Taylor , Justin Ellis , Jonathan Gair

Relativistic binary pulsars orbiting white dwarfs and neutron stars have already provided excellent tests of gravity. However, despite observational efforts, a pulsar orbiting a black hole has remained elusive. One possible explanation is…

The search for continuous gravitational waves from unknown isolated sources is computationally limited due to the enormous parameter space that needs to be covered and the weakness of the expected signals. Therefore semi-coherent search…

广义相对论与量子宇宙学 · 物理学 2013-11-26 Miroslav Shaltev , Reinhard Prix