Improved constraint on the α1 PPN parameter from lunar motion

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  • Northwest Analysis
  • Charles University
  • Technical University of Munich (TUM)
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Original languageEnglish
Pages (from-to)R5927-R5930
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume54
Issue number10
Publication statusPublished - 15 Nov 1996
Externally publishedYes

Abstract

Some theories of gravity, alternative to general relativity, introduce a preferred rest frame for local gravitational physics. At the post-Newtonian level, these preferred-frame effects in Lagrangian-based theories are described by two phenomenological parameters α1 and α2, of which only the latter is strongly constrained today. Following previous theoretical suggestions of Nordtvedt, Damour, and Vokrouhlický, we show that the analysis of the lunar motion provides an improved bound of the former parameter, notably α1 =(-8±9)×10-5 realistic error [and α1 =(-8±4)×10-5(90% C.L.)].

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Improved constraint on the α1 PPN parameter from lunar motion. / Müller, Jürgen; Nordtvedt, Kenneth; Vokrouhlický, David.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 54, No. 10, 15.11.1996, p. R5927-R5930.

Research output: Contribution to journalArticleResearchpeer review

Müller J, Nordtvedt K, Vokrouhlický D. Improved constraint on the α1 PPN parameter from lunar motion. Physical Review D - Particles, Fields, Gravitation and Cosmology. 1996 Nov 15;54(10):R5927-R5930. doi: 10.1103/PhysRevD.54.R5927
Müller, Jürgen ; Nordtvedt, Kenneth ; Vokrouhlický, David. / Improved constraint on the α1 PPN parameter from lunar motion. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1996 ; Vol. 54, No. 10. pp. R5927-R5930.
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