Increase of the mean Sun-Earth distance caused by a secular mass accumulation
Abstract
Based on many planetary observations between the years 1971 and 2003, Krasinsky and Brumberg (Celest. Mech. Dyn. Astron. 90:267-288, 2004) have estimated a rate of increase in the mean Sun-Earth distance of (15±4) m per century. Together with other anomalous observations in the solar system, this increase appears to be unexplained (Lämmerzahl et al. in Astrophys. Space Sci. Lib., vol. 349, pp. 75-101, 2008). We explain these findings by invoking a recently proposed gravitational impact model (Wilhelm et al. in Astrophys. Space Sci. 343:135-144, 2013) that implies a secular mass increase of all massive bodies. This allows us to formulate a quantitative understanding of the effect within the parameter range of the model with a mass accumulation rate of the Sun of (6.4±1.7)×1010 kg s-1.
- Publication:
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Astrophysics and Space Science
- Pub Date:
- September 2013
- DOI:
- 10.1007/s10509-013-1487-1
- Bibcode:
- 2013Ap&SS.347...41W
- Keywords:
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- Mean Sun-Earth distance;
- Astronomical unit;
- Gravitational-impact model;
- Secular mass increase