On some gravitomagnetic spin-spin effects for astronomical bodies
Abstract
Description
In this paper we look at the gravitational spin--spin interaction between macroscopic astronomical bodies. In particular, we calculate their post--Newtonian orbital effects of order $\mathcal{O}(c^{-2})$ on the trajectory of a spinning particle with proper angular momentum ${\bf s}$ moving in the external gravitomagnetic field generated by a central spinning mass with proper angular momentum ${\bf J}$. It turns out that, at order $\mathcal{O}(e)$ in the orbiter's eccentricity, the eccentricity the pericenter and the mean anomaly rates of the moving particle are affected by long--term harmonic effects. If, on one hand, they are undetectable in the Solar System, on the other, maybe that in an astrophysical context like that of the binary millisecond pulsars there will be some hopes of measuring them in the future.
LaTex2e, World Scientific macros, no figures, 3 tables, 9 pages. Accepted for publication in International Journal of Modern Physics D
LaTex2e, World Scientific macros, no figures, 3 tables, 9 pages. Accepted for publication in International Journal of Modern Physics D