We study the effects of oblateness up to J₄ of the primaries and power-law density profile (PDP) on the linear stability of libration location of an infinitesimal mass within the framework of restricted three body problem (R3BP), by using a more realistic model in which a disc with PDP is rotating around the common center of the system mass with perturbed mean motion. The existence and stability of triangular equilibrium points have been explored. It has been shown that triangular equilibrium points are stable for0<μ<μ_c and unstable for μ_c⩽μ≤1/2, where μ_c denotes the critical mass parameter. We find that, the oblateness up to J₂ of the primaries and the radiation reduces the stability range while the oblateness up to J₄ of the primaries increases the size of stability both in the context where PDP is considered and ignored. The PDP has an effect of about ≈0.01 reduction on the application of μ_c to Earth–Moon and Jupiter–Moons systems. We find that the comprehensive effects of the perturbations have a stabilizing proclivity. However, the oblateness up to J₂ of the primaries and the radiation of the primaries have tendency for instability, while coefficients up to J₄ of the primaries have stability predisposition. In the limiting case c=0, and also by setting appropriate parameter(s) to zero, our results are in excellent agreement with the ones obtained previously. Libration points play a very important role in space mission and as a consequence, our results have a practical application in space dynamics and related areas. The model may be applied to study the navigation and stationkeeping operations of spacecraft (infinitesimal mass) around the Jupiter (more massive) -Callisto (less massive) system, where PDP accounts for the circumsolar ring of asteroidal dust, which has a cloud of dust permanently in its wake

Title

Advances in Space Research

Publisher

Elsevier

Publisher Country

United Kingdom

Indexing

Scopus

Impact Factor

None

Publication Type

Both (Printed and Online)

Volume

57

Year

2016

Pages

189-201