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Title:
A Tighter Constraint on Post-Newtonian Gravity Using Millisecond Pulsars
Authors:
Bell, J. F.
Publication:
Astrophysical Journal v.462, p.287 (ApJ Homepage)
Publication Date:
05/1996
Origin:
APJ
Astronomy Keywords:
GRAVITATION, STARS: PULSARS: GENERAL, RELATIVITY
DOI:
10.1086/177149
Bibliographic Code:
1996ApJ...462..287B

Abstract

Some theories of gravity predict the existence of preferred-frame effects and violations of conservation of energy and momentum. General relativity predicts no such effects. In the parameterized postNewtonian (PPN) formalism, the parameter alpha3 ≡ 0 if these effects do not exist. The period derivatives (Pdot) of millisecond pulsars are used to more tightly constrain these effects by showing that |alpha3| < 5 x 10-16.

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