From: LARRY KLAES (ljk4_at_msn.com)
Date: Wed Jun 25 2008 - 07:20:35 PDT
Can the Pioneer anomaly be induced by velocity-dependent forces? Tests in
the outer regions of solar system with planetary dynamics
Authors: Lorenzo Iorio
(Submitted on 18 Jun 2008)
Abstract: In this paper we analyze the impact on the orbital motions of the
outer planets of the solar system from Jupiter to Pluto of some
velocity-dependent forces recently proposed to phenomenologically explain
the Pioneer anomaly, and compare their predictions (secular variations of
the longitude of perihelion \varpi or of the semimajor axis a and the
eccentricity e) with the latest observational determinations by E.V. Pitjeva
with the EPM2006 ephemerides.
It turns out that while the predicted centennial shifts of a are so huge
that they would have been easily detected for all planets with the exception
of Neptune, the predicted anomalous precessions of \varpi are too small,
with the exception of Jupiter, so that they are still compatible with the
estimated corrections to the standard Newton-Einstein perihelion
precessions.
As a consequence, we incline to discard those extra-forces predicting
secular variations of a and e, also for some other reasons, and to give a
chance, at least observationally, to those models predicting still
undetectable perihelion precessions. Of course, adequate theoretical
foundations for them should be found.
Comments: LaTex, WS macros, 12 pages, 4 tables, 4 figures, 30 references
Subjects: General Relativity and Quantum Cosmology (gr-qc); Astrophysics
(astro-ph); Space Physics (physics.space-ph)
Cite as: arXiv:0806.3011v1 [gr-qc]
Submission history
From: Lorenzo Iorio [view email]
[v1] Wed, 18 Jun 2008 14:21:57 GMT (40kb)
http://arxiv.org/abs/0806.3011
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