Search results for " Hubble constant"

showing 1 items of 1 documents

A Gravitational-wave Measurement of the Hubble Constant Following the Second Observing Run of Advanced LIGO and Virgo

2021

This paper presents the gravitational-wave measurement of the Hubble constant (H 0) using the detections from the first and second observing runs of the Advanced LIGO and Virgo detector network. The presence of the transient electromagnetic counterpart of the binary neutron star GW170817 led to the first standard-siren measurement of H 0. Here we additionally use binary black hole detections in conjunction with galaxy catalogs and report a joint measurement. Our updated measurement is H 0 = km s-1 Mpc-1 (68.3% of the highest density posterior interval with a flat-in-log prior) which is an improvement by a factor of 1.04 (about 4%) over the GW170817-only value of km s-1 Mpc-1. A significant …

Gravitacióneutron star: binarycosmological model010504 meteorology & atmospheric sciencesAstronomyGravitational Waves Hubble constant O2 LIGO Virgodetector: network01 natural sciencesCosmologyGeneral Relativity and Quantum CosmologyLIGOdark energy010303 astronomy & astrophysicsQCPhysicsSettore FIS/01Hubble constantSettore FIS/05CATALOGPhysical Sciencessymbols[PHYS.GRQC]Physics [physics]/General Relativity and Quantum Cosmology [gr-qc]Astrophysics - Cosmology and Nongalactic AstrophysicsCosmology and Nongalactic Astrophysics (astro-ph.CO)DATA RELEASECOSMOLOGICAL PARAMETERSFOS: Physical sciencesO2General Relativity and Quantum Cosmology (gr-qc)Astrophysics::Cosmology and Extragalactic AstrophysicsAstronomy & AstrophysicsLUMINOSITY FUNCTIONSgravitational radiation: direct detectionGravitational-wave astronomy1STArticleelectromagnetic field: productionsymbols.namesakeBinary black hole0103 physical sciencesDISTRIBUTIONS/dk/atira/pure/subjectarea/asjc/1900/1912K-CORRECTIONSSDG 7 - Affordable and Clean EnergyAstrophysiqueSTFC0105 earth and related environmental sciencesGravitational Waves/dk/atira/pure/sustainabledevelopmentgoals/affordable_and_clean_energyScience & TechnologyGravitational waveVirgoAstronomyRCUKAstronomy and Astrophysicscosmology; gravitational waves; Hubble constant310 Galaxies and CosmologyLIGOGalaxyEVOLUTIONDewey Decimal Classification::500 | Naturwissenschaften::520 | Astronomie Kartographiegravitational radiation detectorVIRGOblack hole: binarySpace and Planetary Science[SDU]Sciences of the Universe [physics]DENSITYgravitational radiation: emissionDark energyAstronomiaddc:520/dk/atira/pure/subjectarea/asjc/3100/3103galaxyGravitational wave astronomy[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Hubble's lawThe Astrophysical Journal
researchProduct