Year: 2002
Type: article
Abstract: In this investigation we determine a new contribution to the nutation series due to an indirect effect of the triaxiality of the rigid Earth. We undertake this work in the context of the Hamiltonian theory for the rigid Earth, developed by Kinoshita ([CITE]) and recently updated by Souchay et al. ([CITE]). To do this, we express the potential energy in terms of the action–angle variables for the triaxial Earth. Then, we work out analytical formulae for the new contributions, showing that their numerical values are within the truncation level adopted by REN–2000 (Souchay et al. [CITE]), which was fixed to as.
Source: Astronomy and Astrophysics
Authors: A. Escapa, J. Getino, J. M. Ferrándiz
Institutions: University of Alicante, Universidad de Valladolid
Language: English
Subfield: Geophysics
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: bronze
Funder: Junta de Castilla y León
OpenAlex ID: W2147995682