A new post-Newtonian long-term precession model for the Earth
| العنوان: | A new post-Newtonian long-term precession model for the Earth |
|---|---|
| المؤلفون: | J H Tao, Zehao Tang, Michael Soffel, K Tang |
| المصدر: | Monthly Notices of the Royal Astronomical Society. 507:3690-3697 |
| بيانات النشر: | Oxford University Press (OUP), 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Physics, Classical mechanics, Space and Planetary Science, Physics::Space Physics, Newtonian fluid, Precession, Astronomy and Astrophysics, Earth (chemistry), Astrophysics::Earth and Planetary Astrophysics, Term (time) |
| الوصف: | Long-term precession represents the secular motion of the Earth’s axis for a long time interval. In 2015, we calculated the Earth’s long-term precession in a relativistic framework. However, our previous works involving the ecliptic in the Geocentric Celestial Reference System are deficient, because the natural definition of this ecliptic is still ambiguous. To obtain a long-term precession model in accordance with general relativity, improvements are made including the following: all calculations are no longer carried out in the reference related to any ecliptic; a new hybrid integrator is designed and used for this precession model; ecliptic-independent precession parameters are calculated and provided. A detailed comparison analysis is performed to estimate the importance of various relativistic influences on the precession parameters. Valid within the interval of $\pm 1\,$Myr around J2000.0, a consistent post-Newtonian long-term precession model for the Earth has been achieved and is presented here. |
| تدمد: | 1365-2966 0035-8711 |
| DOI: | 10.1093/mnras/stab2396 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::7166284b32fd3f6b0a5a06b8ee5aa9d7 https://doi.org/10.1093/mnras/stab2396 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........7166284b32fd3f6b0a5a06b8ee5aa9d7 |
| قاعدة البيانات: | OpenAIRE |
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