Results from an Einstein@Home search for continuous gravitational waves from Cassiopeia A, Vela Jr. and G347.3

Abstract

We report results of the most sensitive search to date for periodic gravitational waves from Cassiopeia A, Vela Jr. and G347.3 with frequency between 20 and 1500 Hz. The search was made possible by the computing power provided by the volunteers of the Einstein@Home project and improves on previous results by a factor of 2 across the entire frequency range for all targets. We find no significant signal candidate and set the most stringent upper limits to date on the amplitude of gravitational wave signals from the target population, corresponding to sensitivity depths between 54 $[1/\sqrt{\text{Hz}}]$ and 83 $[1/\sqrt{\text{Hz}}]$, depending on the target and the frequency range. At the frequency of best strain sensitivity, near $172$ Hz, we set 90% confidence upper limits on the gravitational wave intrinsic amplitude of $h_0^{90\%}\approx 10^{-25}$, probing ellipticity values for Vela Jr. as low as $3\times 10^{-8}$, assuming a distance of 200 pc.

References in corpus (40)

• Advanced LIGO
• LIGO: The Laser Interferometer Gravitational-Wave Observatory
• 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
• Towards gravitational-wave asteroseismology
• Deformations of Accreting Neutron Star Crusts and Gravitational Wave Emission
• Gravitational Waves from Neutron Stars with Large Toroidal B-fields
• Models of Pulsar Glitches
• The LIGO Open Science Center
• Gravitational radiation limit on the spin of young neutron stars
• Detecting gravitational wave emission from the known accreting neutron stars
• Maximum elastic deformations of relativistic stars
• The generalized F-statistic: multiple detectors and multiple GW pulsars
• Twisted-torus configurations with large toroidal magnetic fields in relativistic stars
• First search for gravitational waves from the youngest known neutron star
• How to adapt broad-band gravitational-wave searches for r-modes
• First low-frequency Einstein@Home all-sky search for continuous gravitational waves in Advanced LIGO data
• On the Expansion Rate, Age, and Distance of the Supernova Remnant G266.2-1.2 (Vela Jr.)
• Postprocessing methods used in the search for continuous gravitational-wave signals from the Galactic Center
• Fast and Accurate Sensitivity Estimation for Continuous-Gravitational-Wave Searches
• Searches for Continuous Gravitational Waves from Fifteen Supernova Remnants and Fomalhaut b with Advanced LIGO
• Search for continuous gravitational waves: Improving robustness versus instrumental artifacts
• Searches for continuous gravitational waves from nine young supernova remnants
• Exploiting Large-Scale Correlations to Detect Continuous Gravitational Waves
• Gravitational radiation from pulsar glitches
• Parameter-space metric of semicoherent searches for continuous gravitational waves
• Parameter-space correlations of the optimal statistic for continuous gravitational-wave detection
• Robust semicoherent searches for continuous gravitational waves with noise and signal models including hours to days long transients
• First low frequency all-sky search for continuous gravitational wave signals
• Search for dark matter produced in association with a Higgs boson decaying to two bottom quarks in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• An Einstein@home search for continuous gravitational waves from Cassiopeia A
• Hierarchical follow-up of sub-threshold candidates of an all-sky Einstein@Home search for continuous gravitational waves on LIGO sixth science run data
• Optimal directed searches for continuous gravitational waves
• Adaptive clustering procedure for continuous gravitational wave searches
• A new veto for continuous gravitational wave searches
• Loosely coherent search in LIGO O1 data for continuous gravitational waves from Terzan 5 and the galactic center
• Persistent crust-core spin lag in neutron stars
• Structure, Deformations and Gravitational Wave Emission of Magnetars
• Gravitational wave transient signal emission via Ekman pumping in neutron stars during post-glitch relaxation phase
• Optimally setting up directed searches for continuous gravitational waves in Advanced LIGO O1 data

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• Searches for Continuous-Wave Gravitational Radiation
• Characterizing the continuous gravitational-wave signal from boson clouds around Galactic isolated black holes
• Continuous gravitational waves from neutron stars: current status and prospects
• Searches for continuous gravitational waves from neutron stars: A twenty-year retrospective
• Search methods for continuous gravitational-wave signals from unknown sources in the advanced-detector era
• Sensitivity improvements in the search for periodic gravitational waves using O1 LIGO data
• Status and perspectives of Continuous Gravitational Wave searches
• Deep-Learning Continuous Gravitational Waves: Multiple detectors and realistic noise
• Einstein@Home all-sky search for continuous gravitational waves in LIGO O2 public data
• Directed search for continuous gravitational-wave signals from the Galactic Center in the Advanced LIGO second observing run
• Search of the Early O3 LIGO Data for Continuous Gravitational Waves from the Cassiopeia A and Vela Jr. Supernova Remnants
• Search for Continuous Gravitational Waves from the Central Compact Objects in Supernova Remnants Cassiopeia A, Vela Jr. and G347.3-0.5
• Search for gravitational waves from five low mass X-ray binaries in the second Advanced LIGO observing run with an improved hidden Markov model
• Directed searches for continuous gravitational waves from twelve supernova remnants in data from Advanced LIGO's second observing run
• Identification and removal of non-Gaussian noise transients for gravitational wave searches
• Search for gravitational waves from twelve young supernova remnants with a hidden Markov model in Advanced LIGO's second observing run
• New searches for continuous gravitational waves from seven fast pulsars
• Deep learning for clustering of continuous gravitational wave candidates II: identification of low-SNR candidates
• Application of a hierarchical MCMC follow-up to Advanced LIGO continuous gravitational-wave candidates
• Empirically estimating the distribution of the loudest candidate from a gravitational-wave search
• Search for continuous gravitational waves from Fomalhaut b in the second Advanced LIGO observing run with a hidden Markov model
• Results from an Einstein@Home search for continuous gravitational waves from G347.3 at low frequencies in LIGO O2 data
• Neutron Star Structure in the Minimal Gravitational Standard-Model Extension and the Implication to Continuous Gravitational Waves
• First Constraining Upper Limits on Gravitational Wave Emission from NS 1987A in SNR 1987A
• Characterizing the sensitivity of isolated continuous gravitational wave searches to binary orbits
• Constraining the coherence scale of the interstellar magnetic field using TeV gamma-ray observations of supernova remnants
• Simulating TeV gamma-ray morphologies of shell-type supernova remnants
• Template banks based on ${\mathbb{Z}}^n$ and $A_n^{\ast }$ lattices
• Anisotropic neutron star crust, solar system mountains, and gravitational waves
• Large-kernel Convolutional Neural Networks for Wide Parameter-Space Searches of Continuous Gravitational Waves
• Searches for continuous gravitational waves from young supernova remnants in the early third observing run of Advanced LIGO and Virgo
• Results from an Einstein@Home search for continuous gravitational waves from Cassiopeia A and Vela Jr. using LIGO O2 data
• Searches for Continuous Gravitational Waves from Supernova Remnants in the first part of the LIGO-Virgo-KAGRA Fourth Observing run