Journal
ASTROPHYSICAL JOURNAL LETTERS
Volume 902, Issue 1, Pages -Publisher
IOP Publishing Ltd
DOI: 10.3847/2041-8213/abb655
Keywords
Gravitational waves; Neutron stars; Pulsars; Gravitational wave sources
Categories
Funding
- Australian Research Council
- EGO consortium
- Council of Scientific and Industrial Research of India
- Department of Science and Technology, India
- Science AMP
- Engineering Research Board (SERB), India
- Ministry of Human Resource Development, India
- Spanish Agencia Estatal de Investigacion
- Vicepresidencia i Conselleria d'Innovacio Recerca i Turisme
- Conselleria d'Educacio i Universitat del Govern de les Illes Balears
- Conselleria d'Innovacio Universitats, Spain
- Ciencia i Societat Digital de la Generalitat Valenciana, Spain
- CERCA Programme Generalitat de Catalunya, Spain
- National Science Centre of Poland
- Swiss National Science Foundation (SNSF)
- Russian Foundation for Basic Research
- Russian Science Foundation
- European Commission
- European Regional Development Funds (ERDF)
- Royal Society
- Scottish Funding Council
- Scottish Universities Physics Alliance
- Hungarian Scientific Research Fund (OTKA)
- French Lyon Institute of Origins (LIO)
- Belgian Fonds de la Recherche Scientifique (FRS-FNRS), Belgium
- Actions de Recherche Concertes (ARC), Belgium
- Fonds Wetenschappelijk Onderzoek-Vlaanderen (FWO), Belgium
- Paris Ilede-France Region
- National Research, Development and Innovation Office Hungary (NKFIH)
- National Research Foundation of Korea
- Industry Canada
- Province of Ontario through the Ministry of Economic Development and Innovation
- Natural Science and Engineering Research Council Canada
- Canadian Institute for Advanced Research
- Brazilian Ministry of Science, Technology, Innovations, and Communications
- International Center for Theoretical Physics South American Institute for Fundamental Research (ICTP-SAIFR)
- Research Grants Council of Hong Kong
- National Natural Science Foundation of China (NSFC)
- Leverhulme Trust
- Research Corporation
- Ministry of Science and Technology (MOST), Taiwan
- Kavli Foundation
- STFC [PPA/G/S/2002/00652, Gravitational Waves, ST/N000072/1, ST/T000414/1, ST/V001396/1, ST/V001167/1, ST/N005406/2, ST/N005406/1, ST/T00049X/1, ST/R00045X/1, ST/H002006/1, ST/S000305/1, 1947165, ST/N005422/1, ST/K000845/1, ST/T000147/1, ST/N005430/1, ST/P000673/1, ST/I006269/1, ST/V001213/1, ST/S000550/1, ST/J00166X/1, ST/V001337/1, ST/N000633/1] Funding Source: UKRI
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We present a search for continuous gravitational waves from five radio pulsars, comprising three recycled pulsars (PSR J0437-4715, PSR J0711-6830, and PSR J0737-3039A) and two young pulsars: the Crab pulsar (J0534+2200) and the Vela pulsar (J0835-4510). We use data from the third observing run of Advanced LIGO and Virgo combined with data from their first and second observing runs. For the first time, we are able to match (for PSR J0437-4715) or surpass (for PSR J0711-6830) the indirect limits on gravitational-wave emission from recycled pulsars inferred from their observed spin-downs, and constrain their equatorial ellipticities to be less than 10(-8). For each of the five pulsars, we perform targeted searches that assume a tight coupling between the gravitational-wave and electromagnetic signal phase evolution. We also present constraints on PSR J0711-6830, the Crab pulsar, and the Vela pulsar from a search that relaxes this assumption, allowing the gravitational-wave signal to vary from the electromagnetic expectation within a narrow band of frequencies and frequency derivatives.
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