Estimates of the change rate of solar mass and gravitational constant based on the dynamics of the Solar System
نویسندگان
چکیده
The estimate of the change rate solar gravitational parameter $\mathrm{d}(GM_{\odot})/\mathrm{d}t$ is obtained from processing modern positional observations planets and spacecraft. Observations were processed parameters determined basing on numerical planetary ephemeris EPM2019. annual decrease in mass $M_{\odot}$ accounts for loss through radiation ${\dot M}_{{\odot}\mathrm{rad}}$, outgoing wind M}_{{\odot}{\mathrm{wind}}}$, material falling Sun M}_{{\odot}\mathrm{fall}}$. estimated relative value within $-13.4\cdot 10^{-14} < (\dot M_{\odot} /M_{\odot})_{\mathrm{rad}+\mathrm{wind}+ \mathrm{fall}} -8.7\cdot 10^{-14}$ per year. following range constant $G$ was obtained: $-2.9 \cdot \dot G /G + 4.6 year $(3\sigma$). new result reduces interval narrows limits possible deviations alternative theories general relativity.
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ژورنال
عنوان ژورنال: Astronomy and Astrophysics
سال: 2021
ISSN: ['0004-6361', '1432-0746']
DOI: https://doi.org/10.1051/0004-6361/202039893