Next Article in Journal
Next Article in Special Issue
Previous Article in Journal
Previous Article in Special Issue
Galaxies 2014, 2(2), 259-262; doi:10.3390/galaxies2020259
Letter

The Lingering Anomalous Secular Increase of the Eccentricity of the Orbit of the Moon: Further Attempts of Explanations of Cosmological Origin

Received: 18 April 2014; Accepted: 25 April 2014 / Published: 2 May 2014
(This article belongs to the Special Issue Beyond Standard Gravity and Cosmology)
Download PDF [75 KB, uploaded 2 May 2014]
Abstract: New analyses of extended data records collected with the Lunar Laser Ranging (LLR) technique performed with improved tidal models were not able to resolve the issue of the anomalous rate e ˙ of the eccentricity e of the orbit of the Moon, which is still in place with a magnitude of e ˙ =(5±2)×10 12 y r 1 . Some possible cosmological explanations are offered in terms of the post-Newtonian effects of the cosmological expansion and of the slow temporal variation of the relative acceleration rate S ¨ S 1 of the cosmic scale factor S. None of them is successful since their predicted secular rates of the lunar eccentricity are too small by several orders of magnitude.
Keywords: experimental studies of gravity; experimental tests of gravitational theories; modified theories of gravity; ephemerides, almanacs, and calendars experimental studies of gravity; experimental tests of gravitational theories; modified theories of gravity; ephemerides, almanacs, and calendars
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |
EndNote


MDPI and ACS Style

Iorio, L. The Lingering Anomalous Secular Increase of the Eccentricity of the Orbit of the Moon: Further Attempts of Explanations of Cosmological Origin. Galaxies 2014, 2, 259-262.

AMA Style

Iorio L. The Lingering Anomalous Secular Increase of the Eccentricity of the Orbit of the Moon: Further Attempts of Explanations of Cosmological Origin. Galaxies. 2014; 2(2):259-262.

Chicago/Turabian Style

Iorio, Lorenzo. 2014. "The Lingering Anomalous Secular Increase of the Eccentricity of the Orbit of the Moon: Further Attempts of Explanations of Cosmological Origin." Galaxies 2, no. 2: 259-262.

Galaxies EISSN 2075-4434 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert