All-sky Search for Continuous Gravitational Waves from Isolated Neutron Stars in the Early O3 LIGO Data

Abstract

We report on an all-sky search for continuous gravitational waves in the frequency band 20-2000\,Hz and with a frequency time derivative in the range of $[-1.0,+0.1]\times 10^{-8}$\,Hz/s. Such a signal could be produced by a nearby, spinning and slightly non-axisymmetric isolated neutron star in our galaxy. This search uses the LIGO data from the first six months of Advanced LIGO's and Advanced Virgo's third observational run, O3. No periodic gravitational wave signals are observed, and 95\%\ confidence-level (CL) frequentist upper limits are placed on their strengths. The lowest upper limits on worst-case (linearly polarized) strain amplitude $h_0$ are $1.7\times 10^{-25}$ near 200\,Hz. For a circularly polarized source (most favorable orientation), the lowest upper limits are $\sim 6.3\times 10^{-26}$. These strict frequentist upper limits refer to all sky locations and the entire range of frequency derivative values. For a population-averaged ensemble of sky locations and stellar orientations, the lowest 95\%\ CL upper limits on the strain amplitude are $\sim 1.\times 10^{-25}$. These upper limits improve upon our previously published all-sky results, with the greatest improvement (factor of $\sim$2) seen at higher frequencies, in part because quantum squeezing has dramatically improved the detector noise level relative to the second observational run, O2. These limits are the most constraining to date over most of the parameter space searched.

arXiv comment28 pages, 7 figures

References in corpus (39)

• Observation of Gravitational Waves from a Binary Black Hole Merger
• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• GWTC-1: A Gravitational-Wave Transient Catalog of Compact Binary Mergers Observed by LIGO and Virgo during the First and Second Observing Runs
• Advanced LIGO
• GWTC-2: Compact Binary Coalescences Observed by LIGO and Virgo During the First Half of the Third Observing Run
• GW190814: Gravitational Waves from the Coalescence of a 23 M${}_{\odot }$ Black Hole with a 2.6 M${}_{\odot }$ Compact Object
• GW190425: Observation of a Compact Binary Coalescence with Total Mass $\sim 3.4M_{\odot }$
• Binary Black Hole Mergers in the first Advanced LIGO Observing Run
• GW150914: The Advanced LIGO Detectors in the Era of First Discoveries
• Data analysis of gravitational-wave signals from spinning neutron stars. I. The signal and its detection
• Exploring the String Axiverse with Precision Black Hole Physics
• The Breaking Strain of Neutron Star Crust and Gravitational Waves
• LIGO Detector Characterization in the Second and Third Observing Runs
• Maximum elastic deformations of relativistic stars
• Gravitational Waves from Neutron Stars: A Review
• All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data
• Identification and mitigation of narrow spectral artifacts that degrade searches for persistent gravitational waves in the first two observing runs of Advanced LIGO
• All-sky search for periodic gravitational waves in LIGO S4 data
• Characterization of systematic error in Advanced LIGO calibration
• Direct constraints on ultra-light boson mass from searches for continuous gravitational waves
• Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015-2017 LIGO Data
• First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data
• All-sky LIGO Search for Periodic Gravitational Waves in the Early S5 Data
• All-sky Search for Periodic Gravitational Waves in the Full S5 LIGO Data
• Full Band All-sky Search for Periodic Gravitational Waves in the O1 LIGO Data
• Validating gravitational-wave detections: The Advanced LIGO hardware injection system
• Results from the first all-sky search for continuous gravitational waves from small-ellipticity sources
• On blind searches for noise dominated signals: a loosely coherent approach
• Einstein@Home all-sky search for continuous gravitational waves in LIGO O2 public data
• Hierarchical multi-stage MCMC follow-up of continuous gravitational wave candidates
• Comprehensive All-sky Search for Periodic Gravitational Waves in the Sixth Science Run LIGO Data
• Loosely coherent searches for sets of well-modeled signals
• Results from high-frequency all-sky search for continuous gravitational waves from small-ellipticity sources
• The search for continuous gravitational waves from small-ellipticity sources at low frequencies
• Application of a hierarchical MCMC follow-up to Advanced LIGO continuous gravitational-wave candidates
• A Novel Universal Statistic for Computing Upper Limits in Ill-behaved Background
• PyFstat: a Python package for continuous gravitational-wave data analysis
• Deep exploration for continuous gravitational waves at 171--172 Hz in LIGO second observing run data

Cited by in corpus (48)

• Searches for Continuous-Wave Gravitational Radiation
• All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO and Advanced Virgo O3 data
• Parameter estimation with gravitational waves
• All-sky search for gravitational wave emission from scalar boson clouds around spinning black holes in LIGO O3 data
• Searches for continuous gravitational waves from neutron stars: A twenty-year retrospective
• Search for continuous gravitational wave emission from the Milky Way center in O3 LIGO--Virgo data
• Search methods for continuous gravitational-wave signals from unknown sources in the advanced-detector era
• Search for continuous gravitational waves from 20 accreting millisecond X-ray pulsars in O3 LIGO data
• Dark photon superradiance: Electrodynamics and multimessenger signals
• Status and perspectives of Continuous Gravitational Wave searches
• Constraints on planetary and asteroid-mass primordial black holes from continuous gravitational-wave searches
• Search of the Early O3 LIGO Data for Continuous Gravitational Waves from the Cassiopeia A and Vela Jr. Supernova Remnants
• All-sky, all-frequency directional search for persistent gravitational-waves from Advanced LIGO's and Advanced Virgo's first three observing runs
• Constraining cosmological extra dimensions with gravitational wave standard sirens: from theory to current and future multi-messenger observations
• New searches for continuous gravitational waves from seven fast pulsars
• The Gravitational Afterglow of Boson Stars
• A frequency resolved atlas of the sky in continuous gravitational waves
• Rapid parameter estimation for an all-sky continuous gravitational wave search using conditional varitational auto-encoders
• Inferring neutron star properties with continuous gravitational waves
• Calibration Uncertainty's Impact on Gravitational-Wave Observations
• Stochastic gravitational-wave background searches and constraints on neutron-star ellipticity
• Results from an Einstein@Home search for continuous gravitational waves from G347.3 at low frequencies in LIGO O2 data
• Gravitational radiation from thermal mountains on accreting neutron stars: sources of temperature non-axisymmetry
• Magnetically confined mountains on accreting neutron stars with multipole magnetic fields
• Measuring neutron-star distances and properties with gravitational-wave parallax
• Early release of the expanded atlas of the sky in continuous gravitational waves
• Validating continuous gravitational-wave candidates from a semicoherent search using Doppler modulation and an effective point spread function
• Bayesian $\mathcal{F}$-statistic-based parameter estimation of continuous gravitational waves from known pulsars
• Graphics processing unit implementation of the F-statistic for continuous gravitational wave searches
• Impact of signal clusters in wide-band searches for continuous gravitational waves
• Search for continuous gravitational waves from HESS~J1427-608 with a hidden Markov model
• Constraining the ellipticity and frequency of binary neutron star remnant via its gravitational-wave and electromagnetic radiations
• Search for continuous gravitational waves directed at sub-threshold radiometer candidates in O3 LIGO data
• Exposing Gravitational Waves below the Quantum Shot Noise
• Toward a computationally-efficient follow-up pipeline for blind continuous gravitational-wave searches
• Expanded atlas of the sky in continuous gravitational waves
• Earth rotation and time-domain reconstruction of polarization states for continuous gravitational waves from a known pulsar
• Efficient representations of upper limits and confidence intervals for experimental data
• The Role of r-Modes in Pulsar Spin-down, Pulsar Timing, and Gravitational Waves
• Effects of orbital eccentricity on continuous gravitational waveforms from triaxially deformed precessing neutron stars in tight binaries
• Impact of ultralight bosonic dark matter on the dynamical bar-mode instability of rotating neutron stars
• Gravitational waves from sub-solar mass primordial black holes
• Inferring neutron star properties through gravitational waves from r-modes and their relativistic counterparts
• Identifying the QCD Phase Transitions via the Gravitational Wave Frequency from Supernova Explosion
• Searches for Continuous Gravitational Waves from Supernova Remnants in the first part of the LIGO-Virgo-KAGRA Fourth Observing run
• Continuous gravitational waves from thermal mountains on accreting neutron stars: effect of the nuclear pasta phase
• Gravitational waves from spinning neutron stars as not-quite-standard sirens
• Extract non-Gaussian Features in Gravitational Wave Observation Data Using Self-Supervised Learning