Relativistic spin precession in the double pulsar

Breton, Rene P., Kaspi, Victoria M., Kramer, Michael, McLaughlin, Maura A., Lyutikov, Maxim, Ransom, Scott M., Stairs, Ingrid H., Ferdman, Robert D. ORCID:, Camilo, Fernando and Possenti, Andrea (2008) Relativistic spin precession in the double pulsar. Science, 321 (5885). pp. 104-107. ISSN 0036-8075

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The double pulsar PSR J0737–3039A/B consists of two neutron stars in a highly relativistic orbit that displays a roughly 30-second eclipse when pulsar A passes behind pulsar B. Describing this eclipse of pulsar A as due to absorption occurring in the magnetosphere of pulsar B, we successfully used a simple geometric model to characterize the observed changing eclipse morphology and to measure the relativistic precession of pulsar B's spin axis around the total orbital angular momentum. This provides a test of general relativity and alternative theories of gravity in the strong-field regime. Our measured relativistic spin precession rate of Embedded Image per year (68% confidence level) is consistent with that predicted by general relativity within an uncertainty of 13%.

Item Type: Article
Depositing User: LivePure Connector
Date Deposited: 12 Jul 2018 14:31
Last Modified: 13 Jul 2023 10:30
DOI: 10.1126/science.1159295

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