Testing alternate gravitational theories
Abstract
The planetary ephemerides are used to examine different suggested forms of the gravitational equations of motion which could possibly cause the observed Pioneer Anomaly. It is shown that most of the forms would be unacceptable, including that generally assumed - a constant acceleration directed toward the Sun. The tests show that three other forms could not exist within 10 au's of the Sun. Only one suggested form would be compatible with the Pioneer Anomaly affecting Saturn or any other more inward planet. Additional planetary observations in the future may possibly eliminate this form also.
- Publication:
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Relativity in Fundamental Astronomy: Dynamics, Reference Frames, and Data Analysis
- Pub Date:
- January 2010
- DOI:
- Bibcode:
- 2010IAUS..261..179S
- Keywords:
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- Pioneer Anomaly;
- Planetary Ephemerides