GW170814
E732408
GW170814 is a gravitational-wave signal detected in 2017 from the merger of two stellar-mass black holes, notable for being observed jointly by the LIGO and Virgo detectors.
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
astrophysical transient
ⓘ
binary black hole merger ⓘ gravitational-wave event ⓘ |
| announcedOn | 2017-09-27 ⓘ |
| belongsToObservingRun | LIGO-Virgo O2 NERFINISHED ⓘ |
| detectedBy |
LIGO
NERFINISHED
ⓘ
Virgo NERFINISHED ⓘ |
| detectedByInstrument |
Advanced LIGO
NERFINISHED
ⓘ
Advanced Virgo NERFINISHED ⓘ |
| hasCatalogInclusion | GWTC-1 gravitational-wave transient catalog NERFINISHED ⓘ |
| hasChirpMass | ~24 solar masses ⓘ |
| hasComponentSpinConstraint | low effective spin ⓘ |
| hasCosmologyAssumption | standard Lambda-CDM cosmology ⓘ |
| hasDataRelease | strain time series publicly available ⓘ |
| hasDeclinationUncertainty | tens of square degrees ⓘ |
| hasDetectionDate | 2017-08-14 ⓘ |
| hasDetectionMethod | gravitational-wave interferometry ⓘ |
| hasDetectorSite |
LIGO Hanford Observatory
NERFINISHED
ⓘ
LIGO Livingston Observatory NERFINISHED ⓘ Virgo detector at Cascina, Italy NERFINISHED ⓘ |
| hasElectromagneticCounterpartDetected | no ⓘ |
| hasEventNameConvention | date-based YYMMDD format ⓘ |
| hasFalseAlarmRate | less than 1 in 27,000 years ⓘ |
| hasFinalBlackHoleMass | 53.2 solar masses ⓘ |
| hasFinalBlackHoleSpin | dimensionless spin ~0.7 ⓘ |
| hasHostGalaxyIdentified | no ⓘ |
| hasLuminosityDistance |
1.8 billion light-years
ⓘ
540 million parsecs ⓘ |
| hasMassRatio | ~1.2 ⓘ |
| hasNetworkSignificance | >5 sigma ⓘ |
| hasPolarizationMeasurement | constrains tensor polarizations ⓘ |
| hasPrimaryBlackHoleMass | 30.5 solar masses ⓘ |
| hasRadiatedEnergy | about 3 solar masses c^2 ⓘ |
| hasRedshift | 0.12 ⓘ |
| hasRightAscensionUncertainty | tens of square degrees ⓘ |
| hasSecondaryBlackHoleMass | 25.3 solar masses ⓘ |
| hasSignalToNoiseRatio | ~15.9 ⓘ |
| hasSkyLocalizationArea | about 60 square degrees ⓘ |
| hasSkyLocalizationImprovementFactor | about 10 ⓘ |
| hasSourceFrameTotalMass | ~56 solar masses ⓘ |
| hasSourceType | stellar-mass black hole binary ⓘ |
| hasWaveformType | inspiral-merger-ringdown ⓘ |
| isConsistentWithGeneralRelativity | yes ⓘ |
| isFirstOfType |
first LIGO-Virgo joint detection of a binary black hole merger
ⓘ
first binary black hole merger observed by three detectors ⓘ |
| reportedInCollaborationPaper | LIGO Scientific Collaboration and Virgo Collaboration NERFINISHED ⓘ |
| testsGeneralRelativity | yes ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.