Aller au contenu principal
Accès ouvert déclaré 2026 article

Narrowband Searches for Continuous Gravitational Waves from known Pulsars in the First Two Parts of the Fourth LIGO–Virgo–KAGRA Observing Run

0Citations signalées — pas une note de qualité
271Institutions déclarées
36Pays d’affiliation déclarés

Résumé fourni par la source

Abstract Rotating nonaxisymmetric neutron stars (NSs) are promising sources for continuous gravitational waves (CWs). CWs may, if detected, inform us about the internal structure and equation of state of NSs. Here, we present a narrowband search for CWs from known pulsars, for which a matched-filter search can be applied. Narrowband searches are robust to mismatches between electromagnetic (EM) and gravitational emissions, in contrast to fully targeted searches where they are assumed to be phase-locked. In this work, we search for the CW counterparts emitted by 34 pulsars using data from the first and second parts of the fourth LIGO–Virgo–KAGRA observing run. We use the 5n-vector narrowband pipeline, which applies frequency-domain matched filtering. In previous searches, it covered a narrow range in the frequency—frequency time derivative ( f — f ̇ ) space. Here, we also explore a range in the second time derivative of the frequency f ̈ around the EM observations. Additionally, for the first time, we target sources in a binary system with this kind of search. We find no evidence for CWs and therefore set upper limits on the strain amplitude emitted by each pulsar. For 20 analyses, we report an upper limit below the theoretical spin-down limit. The tightest constraint is for pulsar PSR J0534+2200 (the Crab pulsar), for which our strain upper limit on the CW amplitude corresponds to ≤0.04% of the spin-down power being radiated in the CW channel.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.

Contrôle bibliographique ouvert

DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Narrowband Searches for Continuous Gravitational Waves from known Pulsars in the First Two Parts of the Fourth LIGO–Virgo–KAGRA Observing Run
Date Crossref
07/07/2026
Éditeur
American Astronomical Society
Type
journal-article

Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude et ne compte pas comme une seconde source scientifique indépendante.

Institutions déclarées

Max Planck Institute for Gravitational PhysicsUniversity of SalernoUniversity of WarwickThe University of Western AustraliaAustralian Regenerative Medicine InstituteMonash UniversityPark UniversityLeibniz University HannoverUniversity of Wisconsin–MilwaukeeCalifornia Institute of TechnologyLouisiana State UniversityTata Institute of Fundamental ResearchAix-Marseille UniversitéUCLouvainQueen Mary University of LondonUniversity of California SystemUniversity of Minnesota SystemInstituto Nacional de Pesquisas EspaciaisUniversité Paris CitéUniversity of Rome Tor VergataUniversity of AntwerpNational Astronomical Observatory of JapanIstituto Nazionale di Fisica Nucleare, Sezione di TorinoFriedrich Schiller University JenaUniversität HamburgUniversity of GenoaUniversité Savoie Mont BlancUniversity of Naples Federico IICardiff UniversityAustralian National UniversityMassachusetts Institute of TechnologyMaastricht UniversityNational Institute for Subatomic PhysicsSapienza University of RomeUniversité Paris-SaclayThe University of TokyoGran Sasso Science InstituteUniversity of FloridaUniversity of UdineTecnológico de MonterreyUniversità di CamerinoUniversity of WashingtonCalifornia State University, FullertonUniversity of StrathclydeLyon 1 UniversitéGeorgia Institute of TechnologyUniversidad de LondresThe Graduate University for Advanced Studies, SOKENDAIUniversity of UrbinoEuropean Gravitational ObservatoryLIGO Scientific CollaborationUniversité de StrasbourgKorea Institute of Science & Technology InformationThe University of OsakaUtrecht UniversityUniversity of PortsmouthIstituto Nazionale di Fisica NucleareIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of TrentoUniversity of PerugiaSyracuse UniversityInter-University Centre for Astronomy and AstrophysicsUniversity of PisaInstitut d'Estudis Espacials de CatalunyaUniversitat de BarcelonaUniversity of GlasgowHUN-REN Wigner Research Centre for PhysicsStanford UniversityUniversity of MichiganUniversity of PaduaInstitute for Plasma ResearchGhent UniversityNicolaus Copernicus Astronomical CenterKU LeuvenCentro de Investigaciones Energéticas, Medioambientales y TecnológicasUniversidad del NoresteInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of SienaVillanova UniversityUniversity of Maryland, College ParkKenyon CollegeMissouri University of Science and TechnologyIndian Institute of Technology MadrasVrije Universiteit AmsterdamLomonosov Moscow State UniversityRochester Institute of TechnologyUniversité Libre de BruxellesBar-Ilan UniversityUniversité Côte d'AzurObservatoire de la Côte d’AzurUniversity of British ColumbiaChristopher Newport UniversityThe University of AdelaideUniversité Rennes 2Université de RennesUniversity of BirminghamUniversity of BolognaWashington State UniversityCornell UniversityUniversity of Rhode IslandSorbonne UniversitéLaboratoire MédiationsThe University of MelbourneUniversity of WarsawUniversity of Milano-BicoccaUniversité de LyonFundació Universitat-Empresa de les Illes BalearsUniversitat de les Illes BalearsUniversity of ChicagoInstitute for High Energy PhysicsUniversity of ArizonaUniversity of Massachusetts DartmouthInstitute for Space Astrophysics and PlanetologyUniversitat de ValènciaSwinburne University of TechnologyUniversity of CopenhagenNational Central UniversityCharles Sturt UniversityVanderbilt UniversityNational Yang Ming Chiao Tung UniversityInternational Centre for Theoretical Physics Asia-PacificNational Tsing Hua UniversityUniversity of ToyamaCarleton CollegeUniversity of SzegedUniversity of CagliariNational Institute for AstrophysicsMontana State UniversityUniversity of UtahJohns Hopkins UniversityThe University of Texas Rio Grande ValleyUniversity of LiègeUniversity of ManitobaIstituto Nazionale di Fisica Nucleare, Centro Nazionale Analisi FotogrammiColorado State UniversityLaboratoire de Physique de Clermont AuvergneNormandie UniversitéUniversity of SheffieldWestern Washington UniversityUniversity of FlorenceUniversidade de Santiago de CompostelaUniversity of ParmaMarquette UniversityPerimeter InstituteScuola Normale SuperioreUniversité Paris Sciences et LettresUniversity of TriesteUniversity of SassariVrije Universiteit BrusselUniversity of ZurichUniversity of TorontoFlatiron Health (United States)Flatiron InstituteStony Brook UniversityMontclair State UniversityIndian Institute of Technology BombayUniversity of MinhoSuperconducting and other Innovative Materials and Devices InstituteUniversity of BasilicataUniversity of the West of ScotlandBarry UniversityEötvös Loránd UniversityOsaka Metropolitan UniversityUniversity of SannioCalifornia State University SystemUniversidad Autónoma de MadridIstituto Nazionale di Geofisica e VulcanologiaOsservatorio Astrofisico di CataniaLe Mans UniversitéLaboratoire d'Acoustique de l'Université du MansUniversity of SouthamptonRoma Tre UniversityUniversity of Nevada, RenoUniversity of NottinghamAriel UniversityUniversity of MississippiInstitute of Science TokyoChinese University of Hong KongNational Institute of Technology AgartalaAmerican UniversityUniversity of MilanFukui Prefectural Maruoka High SchoolUniversity of CambridgeLancaster University GhanaNihon UniversityNiigata UniversitySaha Institute of Nuclear PhysicsTamkang UniversityRutherford Appleton LaboratoryAoyama Gakuin UniversityNagoya UniversityHelmut Schmidt UniversityUniversity of BiałystokChinese Academy of SciencesUniversity of Chinese Academy of SciencesSungkyunkwan UniversityUlsan National Institute of Science and TechnologyChung-Ang UniversityUniversity of Washington BothellJoseph Ayo Babalola UniversityEwha Womans University Medical CenterNational Institute for Mathematical SciencesKorea Astronomy and Space Science InstituteChungnam National UniversityAristotle University of ThessalonikiBard CollegeTechnische Universität BraunschweigInstitute of Mathematics and InformaticsCzech Academy of Sciences, Institute of MathematicsJagiellonian UniversityIstituto Nazionale di Fisica Nucleare, Sezione di PadovaPolytechnique MontréalUniversité de MontréalInje UniversityUniversité Gustave EiffelNational Cheng Kung UniversityThomas UniversityInstitució Catalana de Recerca i Estudis AvançatsHeidelberg UniversityTokyo City UniversityTsinghua UniversityUniversidad de GuadalajaraInstitut des Hautes Études ScientifiquesRyukoku UniversityPhenikaa UniversityUniversity of StavangerHiroshima UniversityUniversity of AmsterdamUniversity College LondonObservatoire de ParisThe Open University of JapanCentral Glass and Ceramic Research InstituteInstitute for Complex SystemsYonsei UniversityHobart and William Smith CollegesCentro Ricerche Enrico FermiKennesaw State UniversityVictoria CollegeCentre National de la Recherche ScientifiqueIMT AtlantiqueUniversidad de AntioquiaUniversidad Politécnica de MadridUniversity of FerraraToho UniversitySeoul National UniversityPeking UniversityLaboratoire Modélisation et Simulation Multi-EchelleOsaka Institute of TechnologyGoddard Space Flight CenterKōchi UniversityKyoto UniversityUniversity of CataniaEindhoven University of TechnologyConcordia University WisconsinKavli Institute for the Physics and Mathematics of the UniverseBeijing Normal UniversityWuhan UniversityInstituto Argentino de RadioastronomíaAstrophysics Science DivisionUniversité d'OrléansChalmers University of TechnologyUniversidad de Santiago de ChileWest Virginia UniversityUniversidad Nacional de La PlataUniversité Fédérale de Toulouse Midi-PyrénéesInstitute for Resource Analysis and PolicyUniversity of ManchesterSpace Research Organisation NetherlandsCurtin UniversityUniversity of TasmaniaMcGill University

Une affiliation ne permet pas de déduire la nationalité d’un auteur.

Sujets associés

Pulsars and Gravitational Waves ResearchGeophysics and Sensor TechnologyGeophysics and Gravity Measurements

BNTIC News n’est pas le producteur de ces données. Recherche à la demande dans Crossref, OpenAIRE, DOAJ, Europe PMC, HAL, DataCite, ROR et la Banque mondiale, sans clé ; OpenAlex reste optionnel. Aucun service payant requis, aucune donnée externe enregistrée en base. Sources et limites.