TY - GEN
TI - Local Dynamical Effects of Scale Invariance: the Lunar Recession
AU - Maeder, Andre
AU - Gueorguiev, Vesselin
AB - Scale invariance is expected in empty Universe models, while the presence of matter tends to suppress it. As shown recently, scale invariance is certainly absent in cosmological models with densities equal to or above the critical value $\varrho_{\mathrm{c}} =3H^2_0/(8 \pi G)$. For models with densities below $\varrho_{\mathrm{c}}$, the possibility of limited effects remains open. If present, scale invariance would be a global cosmological property. Some traces could be observable locally. For the Earth-Moon two-body system, the predicted additional lunar recession would be increased by 0.92 cm/yr, while the tidal interaction would also be slightly increased. The Earth-Moon distance is the most systematically measured distance in the Solar System, thanks to the Lunar Laser Ranging (LLR) experiment active since 1970. The observed lunar recession from LLR amounts to 3.83 ($\pm 0.009$) cm/yr; implying a tidal change of the length-of-the-day (LOD) by 2.395 ms/cy. However, the observed change of the LOD since the Babylonian Antiquity is only 1.78 ms/cy, a result supported by paleontological data, and implying a lunar recession of 2.85 cm/yr. The significant difference of (3.83-2.85) cm/yr = 0.98 cm/yr, already pointed out by several authors over the last two decades, corresponds well to the predictions of the scale-invariant theory, which is also supported by several other astrophysical tests.
DA - 2022/04/28/
PY - 2022
DO - 10.48550/arXiv.2204.13560
DP - arXiv.org
PB - arXiv
ST - Local Dynamical Effects of Scale Invariance
UR - http://arxiv.org/abs/2204.13560
Y2 - 2022/05/21/07:03:27
KW - Astrophysics - Cosmology and Nongalactic Astrophysics
KW - Astrophysics - Earth and Planetary Astrophysics
KW - General Relativity and Quantum Cosmology
ER -