Searches for Gravitational Waves from Known Pulsars at Two Harmonics in the Second and Third LIGO-Virgo Observing Runs

Abstract

We present a targeted search for continuous gravitational waves (GWs) from 236 pulsars using data from the third observing run of LIGO and Virgo (O3) combined with data from the second observing run (O2). Searches were for emission from the $l=m=2$ mass quadrupole mode with a frequency at only twice the pulsar rotation frequency (single harmonic) and the $l=2,m=1,2$ modes with a frequency of both once and twice the rotation frequency (dual harmonic). No evidence of GWs was found so we present 95\% credible upper limits on the strain amplitudes $h_0$ for the single harmonic search along with limits on the pulsars' mass quadrupole moments $Q_{22}$ and ellipticities $\epsilon$. Of the pulsars studied, 23 have strain amplitudes that are lower than the limits calculated from their electromagnetically measured spin-down rates. These pulsars include the millisecond pulsars J0437\textminus4715 and J0711\textminus6830 which have spin-down ratios of 0.87 and 0.57 respectively. For nine pulsars, their spin-down limits have been surpassed for the first time. For the Crab and Vela pulsars our limits are factors of $\sim 100$ and $\sim 20$ more constraining than their spin-down limits, respectively. For the dual harmonic searches, new limits are placed on the strain amplitudes $C_{21}$ and $C_{22}$. For 23 pulsars we also present limits on the emission amplitude assuming dipole radiation as predicted by Brans-Dicke theory.

37 pages

References in corpus (35)

• Array Programming with NumPy
• Advanced Virgo: a 2nd generation interferometric gravitational wave detector
• A Massive Pulsar in a Compact Relativistic Binary
• TEMPO2, a new pulsar timing package. I: Overview
• A New Electron Density Model for Estimation of Pulsar and FRB Distances
• Observation of gravitational waves from two neutron star-black hole coalescences
• Tempo2, a new pulsar timing package. II: The timing model and precision estimates
• The relativistic pulsar-white dwarf binary PSR J1738+0333 II. The most stringent test of scalar-tensor gravity
• Maximum elastic deformations of compact stars with exotic equations of state
• On Pulsar Distance Measurements and their Uncertainties
• Upper limits on gravitational wave emission from 78 radio pulsars
• The MeerKAT Telescope as a Pulsar Facility: System verification and early science results from MeerTime
• Characterization of systematic error in Advanced LIGO calibration
• Calibration Uncertainty for Advanced LIGO's First and Second Observing Runs
• PSR J1756$-$2251: a pulsar with a low-mass neutron star companion
• Fitting Pulsar Wind Tori. II. Error Analysis and Applications
• Recent searches for continuous gravitational waves
• TEMPO2, a new pulsar timing package. III: Gravitational wave simulation
• On the distance of the globular cluster M4 (NGC 6121) using RR Lyrae stars: I. optical and near-infrared Period-Luminosity and Period-Wesenheit relations
• Narrow-band search for gravitational waves from known pulsars using the second LIGO observing run
• SWIGLAL: Python and Octave interfaces to the LALSuite gravitational-wave data analysis libraries
• The Parkes pulsar timing array second data release: Timing analysis
• The UTMOST pulsar timing programme II: Timing noise across the pulsar population
• First narrow-band search for continuous gravitational waves from known pulsars in advanced detector data
• Search methods for continuous gravitational-wave signals from unknown sources in the advanced-detector era
• Six millisecond pulsars detected by the Fermi Large Area Telescope and the radio/gamma-ray connection of millisecond pulsars
• PSR J2322$-$2650 -- A low-luminosity millisecond pulsar with a planetary-mass companion
• A method for narrow-band searches of continuous gravitational wave signals
• The High Time Resolution Universe Survey - XI. Discovery of five recycled pulsars and the optical detectability of survey white dwarf companions
• High resolution HI and radio continuum observations of the SNR G290.1-0.8
• The slow rise and recovery of the 2019 Crab pulsar glitch
• A multi-wavelength study of nearby millisecond pulsar PSR J1400$-$1431: improved astrometry & an optical detection of its cool white dwarf companion
• Radio Detection of PSR J1813-1749 in HESS J1813-178: The Most Scattered Pulsar Known
• Why the distance of PSR J0218+4232 does not challenge pulsar emission theories
• Detection of a Glitch in PSR J0908$-$4913 by UTMOST

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