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Searches for Continuous Gravitational Waves from Supernova Remnants in the First Part of the LIGO-Virgo-KAGRA Fourth Observing Run

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252Institutions déclarées
34Pays d’affiliation déclarés

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Abstract We present results from directed searches for continuous gravitational waves from a sample of 15 nearby supernova remnants, likely hosting young neutron star candidates, using data from the first eight months of the fourth observing run (O4) of the LIGO–Virgo–KAGRA Collaboration. The analysis employs five pipelines: four semicoherent methods—the Band-Sampled-Data directed pipeline, Weave, and two Viterbi pipelines (single- and dual-harmonic)—and PyStoch, a cross-correlation-based pipeline. These searches cover wide frequency bands and do not assume prior knowledge of the targets’ ephemerides. No evidence of a signal is found from any of the 15 sources. We set 95% confidence-level upper limits on the intrinsic strain amplitude, with the most stringent constraints reaching ∼4 × 10 −26 near 300 Hz for the nearby source G266.2−1.2 (Vela Jr.). We also derive limits on neutron star ellipticity and r -mode amplitudes for the same source, with the best constraints reaching ≲10 −7 and ≲10 −5 , respectively, at frequencies above 400 Hz. For frequencies above 200 Hz, these results represent the most sensitive wide-band directed searches for continuous gravitational waves from supernova remnants to date.

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DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.

Titre Crossref
Searches for Continuous Gravitational Waves from Supernova Remnants in the First Part of the LIGO-Virgo-KAGRA Fourth Observing Run
Date Crossref
15/06/2026
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 WarwickAustralian Regenerative Medicine InstituteMonash UniversityPennsylvania State 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 JenaUniversity 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 TokyoInstitute for High Energy PhysicsGran 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 UniversityThe University of Western AustraliaUniversity of PortsmouthUniversity 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 PhysicsConcordia University WisconsinStanford UniversityUniversity of MichiganUniversity of PaduaInstitute for Plasma ResearchGhent UniversityPolish Academy of SciencesUniversität HamburgUniversité de ToulonFundació Universitat-Empresa de les Illes BalearsUniversitat de les Illes BalearsInstitut National de Physique Nucléaire et de Physique des ParticulesUniversity of SienaVillanova UniversityKenyon CollegeMissouri University of Science and TechnologyIndian Institute of Technology MadrasVrije Universiteit AmsterdamLomonosov Moscow State UniversityKU LeuvenRochester Institute of TechnologyUniversité Libre de BruxellesBar-Ilan UniversityUniversité Côte d'AzurObservatoire de la Côte d’AzurUniversity of British ColumbiaThe University of AdelaideUniversité Rennes 2Université de RennesUniversity of BirminghamWashington State UniversityCornell UniversitySorbonne UniversitéLaboratoire MédiationsChristopher Newport UniversityThe University of MelbourneAstronomical ObservatoryUniversity of Maryland, College ParkUniversity of Milano-BicoccaUniversité de LyonUniversity of ChicagoUniversity of ArizonaUniversity of Massachusetts DartmouthUniversidad de GuadalajaraInstitute for Space Astrophysics and PlanetologyColorado State UniversityUniversitat de ValènciaUniversity of CopenhagenNational Central UniversityNational Tsing Hua UniversityCharles Sturt UniversityVanderbilt UniversityNational Yang Ming Chiao Tung UniversityInternational Centre for Theoretical Physics Asia-PacificUniversidad del NoresteUniversity of ToyamaCarleton CollegeUniversity of SzegedSwinburne University of TechnologyUniversity of CagliariNational Institute for AstrophysicsMontana State UniversityUniversity of UtahJohns Hopkins UniversityUniversity of Rhode IslandThe University of Texas Rio Grande ValleyUniversity of LiègeIstituto Nazionale di Fisica NucleareIstituto Nazionale di Fisica Nucleare, Sezione di BolognaUniversity of BolognaUniversity of ManitobaIstituto Nazionale di Fisica Nucleare, Centro Nazionale Analisi FotogrammiUniversity of SassariLaboratoire de Physique de Clermont AuvergneNormandie UniversitéUniversity of SheffieldUniversity of FlorenceUniversidade de Santiago de CompostelaUniversity of ParmaCalifornia State University SystemMarquette UniversityPerimeter InstituteUniversité Paris Sciences et LettresUniversity of TriesteVrije 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 BasilicataWestern Washington UniversityUniversity of the West of ScotlandBarry UniversityEötvös Loránd UniversityOsaka Metropolitan UniversityUniversity of SannioUniversidad Autónoma de MadridLe 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 KongAmerican UniversityUniversity of MilanFukuoka UniversityUniversity of CambridgeLancaster University GhanaNihon UniversityNiigata UniversityTamkang UniversityRutherford Appleton LaboratoryAoyama Gakuin UniversityHelmut Schmidt UniversityInstitute for Theoretical and Experimental PhysicsObservatoire astronomique de StrasbourgUniversity of BiałystokChinese Academy of SciencesUniversity of Chinese Academy of SciencesSungkyunkwan UniversityChung-Ang UniversityUniversity of Washington BothellJoseph Ayo Babalola UniversityEwha Womans University Medical CenterNational Institute for Mathematical SciencesKorea Astronomy and Space Science InstituteChungnam National UniversityInstitute of Particle and Nuclear StudiesNagoya UniversityAristotle University of ThessalonikiBard CollegeTechnische Universität BraunschweigInstitute of Mathematics and InformaticsCzech Academy of Sciences, Institute of MathematicsJagiellonian UniversityPolytechnique MontréalUniversité de MontréalInje UniversitySeoul National UniversityNational Cheng Kung UniversityThomas UniversityScuola Normale SuperioreInstitució Catalana de Recerca i Estudis AvançatsHeidelberg UniversityTokyo City UniversityTsinghua UniversityInstitut des Hautes Études ScientifiquesRyukoku UniversityPhenikaa UniversityUniversity of StavangerHiroshima UniversityUniversity of AmsterdamUniversity College LondonObservatoire de ParisLaboratoire Univers et ThéoriesCentral Glass and Ceramic Research InstituteInstitute for Complex SystemsYonsei UniversityHobart and William Smith CollegesCentro Ricerche Enrico FermiKennesaw State UniversityCentre National de la Recherche ScientifiqueIMT AtlantiqueUniversidad de AntioquiaUniversidad Politécnica de MadridUniversity of FerraraToho UniversityPeking UniversityLaboratoire Modélisation et Simulation Multi-EchelleOsaka Institute of TechnologyGoddard Space Flight CenterKōchi UniversityUniversity of WarsawKyoto UniversityUniversity of CataniaEindhoven University of TechnologyBeijing Normal UniversityWuhan University

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