First all-sky search for continuous gravitational waves from unknown sources in binary systems

Abstract

We present the first results of an all-sky search for continuous gravitational waves from unknown spinning neutron stars in binary systems using LIGO and Virgo data. Using a specially developed analysis program, the TwoSpect algorithm, the search was carried out on data from the sixth LIGO Science Run and the second and third Virgo Science Runs. The search covers a range of frequencies from 20 Hz to 520 Hz, a range of orbital periods from 2 to ~2,254 h and a frequency- and period-dependent range of frequency modulation depths from 0.277 to 100 mHz. This corresponds to a range of projected semi-major axes of the orbit from ~0.6e-3 ls to ~6,500 ls assuming the orbit of the binary is circular. While no plausible candidate gravitational wave events survive the pipeline, upper limits are set on the analyzed data. The most sensitive 95% confidence upper limit obtained on gravitational wave strain is 2.3e-24 at 217 Hz, assuming the source waves are circularly polarized. Although this search has been optimized for circular binary orbits, the upper limits obtained remain valid for orbital eccentricities as large as 0.9. In addition, upper limits are placed on continuous gravitational wave emission from the low-mass x-ray binary Scorpius X-1 between 20 Hz and 57.25 Hz.

arXiv comment16 pages, 6 figures

References in corpus (30)

• The ATNF Pulsar Catalogue
• LIGO: The Laser Interferometer Gravitational-Wave Observatory
• Data analysis of gravitational-wave signals from spinning neutron stars. I. The signal and its detection
• Gravitational Radiation and Rotation of Accreting Neutron Stars
• Searching for periodic sources with LIGO. II: Hierarchical searches
• Detecting gravitational wave emission from the known accreting neutron stars
• The mass donor of Scorpius X-1 revealed
• Coherent searches for periodic gravitational waves from unknown isolated sources and Scorpius X-1: results from the second LIGO science run
• Gravitational Radiation from an Accreting Millisecond Pulsar with a Magnetically Confined Mountain
• All-sky search for periodic gravitational waves in LIGO S4 data
• The Einstein@Home search for periodic gravitational waves in LIGO S4 data
• How to adapt broad-band gravitational-wave searches for r-modes
• Upper limit map of a background of gravitational waves
• Einstein@Home all-sky search for periodic gravitational waves in LIGO S5 data
• Directional limits on persistent gravitational waves using LIGO S5 science data
• Einstein@Home search for periodic gravitational waves in early S5 LIGO data
• First all-sky upper limits from LIGO on the strength of periodic gravitational waves using the Hough transform
• All-sky LIGO Search for Periodic Gravitational Waves in the Early S5 Data
• The characterization of Virgo data and its impact on gravitational-wave searches
• All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data
• An all-sky search algorithm for continuous gravitational waves from spinning neutron stars in binary systems
• Quadrupole moment of a magnetically confined mountain on an accreting neutron star: effect of the equation of state
• Resistive relaxation of a magnetically confined mountain on an accreting neutron star
• Millisecond pulsars with r-modes as steady gravitational radiators
• Precise calibration of LIGO test mass actuators using photon radiation pressure
• Improved estimate of the detectability of gravitational radiation from a magnetically confined mountain on an accreting neutron star
• Precision ephemerides for gravitational-wave searches: I. Sco X-1
• Three-dimensional stability of magnetically confined mountains on accreting neutron stars
• Searching for continuous gravitational wave sources in binary systems
• Sinking of a magnetically confined mountain on an accreting neutron star

Cited by in corpus (58)

• Measuring the neutron star equation of state using X-ray timing
• Probing Ultralight Bosons with Binary Black Holes
• Expected properties of the first gravitational wave signal detected with pulsar timing arrays
• All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
• Searches for Continuous-Wave Gravitational Radiation
• Recent searches for continuous gravitational waves
• First search for nontensorial gravitational waves from known pulsars
• Search for gravitational waves from Scorpius X-1 in the first Advanced LIGO observing run with a hidden Markov model
• Hidden Markov model tracking of continuous gravitational waves from a neutron star with wandering spin
• Probing Dynamical Gravity with the Polarization of Continuous Gravitational Waves
• Detecting gravitational waves from mountains on neutron stars in the Advanced Detector Era
• Upper Limits on Gravitational Waves from Scorpius X-1 from a Model-Based Cross-Correlation Search in Advanced LIGO Data
• Fast and Accurate Sensitivity Estimation for Continuous-Gravitational-Wave Searches
• Searches for continuous gravitational waves from neutron stars: A twenty-year retrospective
• Searches for continuous gravitational waves from nine young supernova remnants
• Directed searches for continuous gravitational waves from binary systems: parameter-space metrics and optimal Scorpius X-1 sensitivity
• Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model
• Cosmic Neutron Star Merger Rate and Gravitational Waves constrained by the R Process Nucleosynthesis
• Gravitational waves from Sco X-1: A comparison of search methods and prospects for detection with advanced detectors
• A directed search for gravitational waves from Scorpius X-1 with initial LIGO
• Hidden Markov model tracking of continuous gravitational waves from a binary neutron star with wandering spin. II. Binary orbital phase tracking
• Consequences of a strong phase transition in the dense matter equation of state for the rotational evolution of neutron stars
• Measuring dark matter spikes around primordial black holes with Einstein Telescope and Cosmic Explorer
• Mass loss through the L2 Lagrange point - Application to Main Sequence EMRI
• Model-Based Cross-Correlation Search for Gravitational Waves from Scorpius X-1
• Second Einstein Telescope Mock Data and Science Challenge: Low Frequency Binary Neutron Star Data Analysis
• First all-sky search for continuous gravitational-wave signals from unknown neutron stars in binary systems using Advanced LIGO data
• All-sky search for long-duration gravitational wave transients with LIGO
• Search for gravitational waves from five low mass X-ray binaries in the second Advanced LIGO observing run with an improved hidden Markov model
• Searches for continuous gravitational waves from Scorpius X-1 and XTE J1751-305 in LIGO's sixth science run
• Cross-correlation search for continuous gravitational waves from a compact object in SNR 1987A in LIGO Science Run 5
• Exploiting Orbital Constraints from Optical Data to Detect Binary Gamma-ray Pulsars
• Detecting very long-lived gravitational-wave transients lasting hours to weeks
• Model-based cross-correlation search for gravitational waves from the low-mass X-ray binary Scorpius X-1 in LIGO O3 data
• Gravitational wave emission by the high braking index pulsar PSR J1640-4631
• Search for continuous gravitational waves from neutron stars in globular cluster NGC 6544
• Empirically extending the range of validity of parameter-space metrics for all-sky searches for gravitational-wave pulsars
• BinarySkyHough: a new method to search for continuous gravitational waves from unknown neutron stars in binary systems
• Analogue simulation of gravitational waves in a 3+1 dimensional Bose-Einstein condensate
• Tuning into Scorpius X-1: adapting a continuous gravitational-wave search for a known binary system
• Banks of templates for all-sky narrow-band searches of gravitational waves from spinning neutron stars
• Establishing the significance of continuous gravitational-wave detections from known pulsars
• Resampling to accelerate cross-correlation searches for continuous gravitational waves from binary systems
• Chiral Gravitational Waves from Chiral Fermions
• Gravitational radiation from thermal mountains on accreting neutron stars: sources of temperature non-axisymmetry
• Novel directed search strategy to detect continuous gravitational waves from neutron stars in low- and high-eccentricity binary systems
• Characterizing the sensitivity of isolated continuous gravitational wave searches to binary orbits
• All-sky, narrowband, gravitational-wave radiometry with folded data
• Transition of EMRIs through resonance: corrections to higher order in the on-resonance flux modification
• Estimation of the gravitational wave polarizations from a non template search
• Constraining the ellipticity of millisecond pulsars with observed spin-down rates
• Coherently combining short data segments for all-sky semi-coherent continuous gravitational wave searches
• Improved all-sky search method for continuous gravitational waves from unknown neutron stars in binary systems
• Formation of Sco X-1 induced by anomalous magnetic braking of Ap/Bp stars
• Gravitational-wave searches in the era of Advanced LIGO and Virgo
• Probing Particle Physics with Gravitational Waves
• Search for continuous gravitational waves from unknown neutron stars in binary systems with long orbital periods in O3 data
• Constraints on r-modes and mountains on millisecond neutron stars in binary systems