Gravitational rotation of polarization: Clarifying the gauge dependence and prediction for a double pulsar

Ue-Li Pen, Xin Wang, and I-Sheng Yang
Phys. Rev. D 95, 044034 – Published 21 February 2017

Abstract

From the basic concepts of general relativity, we investigate the rotation of the polarization angle by a moving gravitational lens. In particular, we clarify the existing confusion in the literature by showing and explaining why such rotation must explicitly depend on the relative motion between the observer and the lens. We update the prediction of such effect on the double pulsar PSR J0737-3039 and estimate a rotation angle of 107rad. Despite its tiny signal, this is 10 orders of magnitude larger than the previous prediction by Ruggiero and Tartaglia [1], which apparently was misguided by the confusion in the literature.

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  • Received 16 December 2016

DOI:https://doi.org/10.1103/PhysRevD.95.044034

© 2017 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Ue-Li Pen1,2,3,*, Xin Wang1,†, and I-Sheng Yang1,4,‡

  • 1Canadian Institute of Theoretical Astrophysics, 60 St George St, Toronto, Ontario M5S 3H8, Canada
  • 2Canadian Institute for Advanced Research, CIFAR program in Gravitation and Cosmology, 180 Dundas Street West, Toronto, Ontario M5G 1Z8, Canada
  • 3Dunlap Institute for Astronomy & Astrophysics, University of Toronto, AB 120-50 St. George Street, Toronto, Ontario M5S 3H4, Canada
  • 4Perimeter Institute of Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2L 2Y5, Canada

  • *pen@cita.utoronto.ca
  • xwang@cita.utoronto.ca
  • isheng.yang@gmail.com

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Vol. 95, Iss. 4 — 15 February 2017

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