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  Testing the strong equivalence principle with the triple pulsar PSR J0337+1715

Shao, L. (2016). Testing the strong equivalence principle with the triple pulsar PSR J0337+1715. Physical Review D, 93: 084023. doi:http://dx.doi.org/10.1103/PhysRevD.93.084023.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-3BD2-C Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002A-3BD3-A
Genre: Journal Article

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PhysRevD.93.084023.pdf (Any fulltext), 987KB
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 Creators:
Shao, Lijing1, Author              
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1Astrophysical and Cosmological Relativity, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, escidoc:1933290              

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 Abstract: Three conceptually different masses appear in equations of motion for objects under gravity, namely, the inertial mass, mI, the passive gravitational mass, mP, and the active gravitational mass, mA. It is assumed that, for any objects, mI=mP=mA in the Newtonian gravity, and mI=mP in the Einsteinian gravity, oblivious to objects’ sophisticated internal structure. Empirical examination of the equivalence probes deep into gravity theories. We study the possibility of carrying out new tests based on pulsar timing of the stellar triple system, PSR J0337+1715. Various machine-precision three-body simulations are performed, from which, the equivalence-violating parameters are extracted with Markov chain Monte Carlo sampling that takes full correlations into account. We show that the difference in masses could be probed to 3×10−8, improving the current constraints from lunar laser ranging on the post-Newtonian parameters that govern violations of mP=mI and mA=mP by thousands and millions, respectively. The test of mP=mA would represent the first test of Newton’s third law with compact objects.

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 Dates: 2016
 Publication Status: Published in print
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Title: Physical Review D
  Other : Phys. Rev. D.
Source Genre: Journal
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Publ. Info: Lancaster, Pa. : American Physical Society
Pages: - Volume / Issue: 93 Sequence Number: 084023 Start / End Page: - Identifier: ISSN: 0556-2821
CoNE: http://pubman.mpdl.mpg.de/cone/journals/resource/111088197762258