Use of an Analytical Theory for the Physical Libration of the Moon to Detect Free Nutation of the Lunar Core
- Authors: Petrova N.K.1,2, Nefedyev Y.A.1, Zagidullin A.A.1, Andreev A.O.1
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Affiliations:
- Kazan (Volga Region) Federal University
- Kazan State Power Engineering University
- Issue: Vol 62, No 12 (2018)
- Pages: 1021-1025
- Section: Article
- URL: https://journals.rcsi.science/1063-7729/article/view/192412
- DOI: https://doi.org/10.1134/S1063772918120120
- ID: 192412
Cite item
Abstract
A brief review of modern observational achievements and the theoretical basis of physical libration of the Moon is presented. Special attention is given to the inferred existence of a lunar core and determination of its parameters. The creation of a theory of physical libration of the Moon, which requires analyses of semi-empirical series of long-term laser observations and the use of the highly accurate DE421 dynamical ephemeris, is related to this. A large role in this area has been played by the analytical theory of physical libration of the Moon constructed by Yu.V. Barkin, which made it possible for the first time to derive parameters of the free nutation of the lunar core from observations. This paper is based on a talk given at the conference “Modern Astrometry 2017,” dedicated to the memory of K.V. Kuimov (Sternberg Astronomical Institute, Moscow State University, October 23–25, 2017).
About the authors
N. K. Petrova
Kazan (Volga Region) Federal University; Kazan State Power Engineering University
Author for correspondence.
Email: star1955@mail.ru
Russian Federation, ul. Kremlevskaya 18, Kazan, 420008; Kazan
Yu. A. Nefedyev
Kazan (Volga Region) Federal University
Email: star1955@mail.ru
Russian Federation, ul. Kremlevskaya 18, Kazan, 420008
A. A. Zagidullin
Kazan (Volga Region) Federal University
Email: star1955@mail.ru
Russian Federation, ul. Kremlevskaya 18, Kazan, 420008
A. O. Andreev
Kazan (Volga Region) Federal University
Email: star1955@mail.ru
Russian Federation, ul. Kremlevskaya 18, Kazan, 420008
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