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Gravity waves slow binary pulsar

MAY 01, 1979

Although most physicists have long been convinced that gravity waves would ultimately be detected, there has yet been no unambiguous experimental confirmation of their existence. Recent work by Joseph Taylor and Lee Fowler of the University of Massachusetts at Amherst and Peter McCulloch of the University of Tasmania, however, provides further evidence for the reality of these elusive waves. In the 8 February issue of Nature (277, page 437), Taylor, Fowler and McCulloch report that the orbital period of the only known binary pulsar is diminishing at a rate of about 3 parts in 1012, which is consistent with quadrupole radiation of gravity waves by the system.

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This Content Appeared In
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Volume 32, Number 5

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