Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009cemda.105..261k&link_type=abstract
Celestial Mechanics and Dynamical Astronomy, Volume 105, Issue 4, pp.261-274
Astronomy and Astrophysics
Astronomy
3
Convective Term, Elastic Earth, Nutation Series, Andoyer Variables, Rotational Axis, Figure Axis
Scientific paper
We calculate the so-called convective term, which shows up in the expression for the angular velocity of the elastic Earth, within the Andoyer formalism. The term emerges due to the fact that the elasticity-caused perturbation depends not only on the instantaneous orientation of the Earth but also on its instantaneous angular velocity. We demonstrate that this term makes a considerable contribution into the overall angular velocity. At the same time the convective term turns out to be automatically included into the correction to the nutation series due to the elasticity, if the series is defined by the perturbation of the figure axis (and not of the rotational axis) in accordance with the current IAU resolution. Hence it is not necessary to take the effect of the convective term into consideration in the perturbation of the elastic Earth as far as the nutation is related to the motion of the figure axis.
No associations
LandOfFree
Rotation of the elastic Earth: the role of the angular-velocity-dependence of the elasticity-caused perturbation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Rotation of the elastic Earth: the role of the angular-velocity-dependence of the elasticity-caused perturbation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotation of the elastic Earth: the role of the angular-velocity-dependence of the elasticity-caused perturbation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1886970