Constraints on planet X/Nemesis from Solar System's inner dynamics

Constraints on planet X/Nemesis from Solar System’s inner dynamics

We use the corrections ∆$̇ to the standard Newtonian/Einsteinian perihelion precessions of the inner planets of the solar system, recently estimated by E.V. Pitjeva by fitting a huge planetary data set with the dynamical models of the EPM ephemerides, to put constraints on the position of a putative, yet undiscovered large body X of mass MX, not modelled in the EPM software. The direct action of...

9 Constraints on Planet X and Nemesis from Solar System ’ s inner dynamics

The gravitational acceleration imparted on the solar system’s rocky planets by a putative large body like a planet or a star located at hundreds/thousands AU from the Sun can be considered as a small constant and uniform perturbation A over the characteristic temporal and spatial scales of the inner planetary regions (Pb . 1 yr, r . 1.5 AU). We computed the variation of the longitude of the per...

Constraints on Planet X and Nemesis from Solar System’s inner dynamics

The gravitational acceleration imparted on a solar system’s rocky planet by a putative large body X like a planet or a star located at hundreds/thousands AU from the Sun can be considered as a small Hooke-type perturbation AX = Kr over the characteristic temporal and spatial scales of the inner planetary regions (Pb . 1 yr, r . 1.5 AU). We computed the variation of the longitude of the periheli...

Approximately Quasi Inner Generalized Dynamics on Modules

We investigate some properties of approximately quasi inner generalized dynamics and quasi approximately inner generalized derivations on modules. In particular, we prove that if A is a C*-algebra, is the generator of a generalized dynamics on an A-bimodule M satisfying and there exist two sequences of self adjoint elements in A such that for all in a core for , , then is approx...

APPROXIMATELY INNER sigma-DYNAMICS ON C* ALGEBRAS