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gptkbp:instance_of
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gptkb:observatory
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gptkbp:collaborations
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gptkb:LIGO_Scientific_Collaboration
gptkb:Virgo_detector
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gptkbp:contributed_to
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understanding of black hole physics
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gptkbp:date
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September 14, 2015
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gptkbp:duration
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0.2 seconds
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gptkbp:events
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G W150914
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gptkbp:first_appearance
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binary black hole merger
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gptkbp:frequency
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35 to 250 Hz
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gptkbp:has_spectral_type
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gptkb:observatory
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https://www.w3.org/2000/01/rdf-schema#label
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first observation of a binary black hole merger
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gptkbp:impact
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gravitational wave astronomy
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gptkbp:inspired
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further research in astrophysics
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gptkbp:is_observed_in
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gptkb:LIGO_detectors
chirp signal
electromagnetic counterparts
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gptkbp:location
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gptkb:Hanford,_Washington
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gptkbp:mass
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approximately 29 and 36 solar masses
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gptkbp:published_by
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' Observation of Gravitational Waves from a Binary Black Hole Merger'
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gptkbp:recognizes
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gptkb:character
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gptkbp:research
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interferometry
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gptkbp:resulted_in
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gptkb:Nobel_Prize_in_Physics_2017
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gptkbp:significance
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gptkb:first_direct_detection_of_gravitational_waves
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gptkbp:theory
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gptkb:general_relativity
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gptkbp:universe
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two black holes
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gptkbp:bfsParent
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gptkb:LIGO-Virgo-KAGRA_network
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gptkbp:bfsLayer
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5
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