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The Shadow of the Black Hole$
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John W. Moffat

Print publication date: 2020

Print ISBN-13: 9780190650728

Published to Oxford Scholarship Online: June 2020

DOI: 10.1093/oso/9780190650728.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 03 August 2021

Origins of Gravitational Waves and Detectors

Origins of Gravitational Waves and Detectors

(p.88) 6 Origins of Gravitational Waves and Detectors
The Shadow of the Black Hole

John W. Moffat

Oxford University Press

Civita criticized Einstein’s papers on gravitational waves: their energy momentum is frame dependent and therefore does not fit the covariance of Einstein’s gravity theory. Infeld and Rosen did not believe gravitational waves existed, and Einstein changed his mind on their existence repeatedly. Others did believe in them, such as Fock and Feynman. Weber constructed his “Weber bar” to detect gravitational waves, but when he claimed success, he was criticized. He then proposed using a Michelson-Morley type of interferometer with lasers to detect gravitational waves, as did Weiss. Merging black holes and neutron stars were proposed as detectable sources of gravitational waves. Taylor and Hulse, using the large Arecibo radio telescope, indirectly detected gravitational waves from inspiraling neutron stars. Primordial gravitational waves, still emanating from the Big Bang, were claimed to have been detected by BICEP2, but the waves were eventually shown to be a result of foreground dust.

Keywords:   gravitational wave existence, Infeld and Rosen, Weber bar, Weiss, laser interferometry, gravitational waves sources, merging black holes, primordial gravitational waves, Big Bang, BICEP2

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