Articles written in Journal of Astrophysics and Astronomy

    • On sensitivity of the stability of equilibrium points with respect to the perturbations


      More Details Abstract Fulltext PDF

      The present investigation considers the effect of small perturbations given in the Coriolis and centrifugal forces on the location and stability of the equilibrium points in the Robe’s circular restricted three-body problem with non-spherical primary bodies. The felicitous equations of motion of $m_3$ are obtainedby taking into account the shapes of primaries $m_1$ and $m_2$, the full buoyancy force of the fluid which is filled inside $m_1$ of density $\rho_1$, the forces due to the gravitational attraction of the fluid and $m_2$. We assume that the massive body $m_1$ is an oblate spheroid and the $m_2$ a finite straight segment, and they move under a mutual gravitational attraction described by the Newton’s universal law of gravitation. In the present problem, $m_3$ is moving in the fluid and the rotating reference frame is used, its motion is bound to be affected by the perturbed Coriolis and centrifugal forces. In this attempt these effects along with the effects caused by the oblateness and length parameters $A$ and $l$ respectively, on the location and stability of the equilibrium pointsare observed. A pair of collinear equilibrium points $L_1$ and $L_2$ and infinite number of non-collinear equilibrium points are obtained. The stability of all the equilibrium points depends on the coefficients of their corresponding characteristic polynomials that are obtained with the help of linear variational equations.

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    • Continuous Article Publication

      Posted on January 27, 2016

      Since January 2016, the Journal of Astrophysics and Astronomy has moved to Continuous Article Publishing (CAP) mode. This means that each accepted article is being published immediately online with DOI and article citation ID with starting page number 1. Articles are also visible in Web of Science immediately. All these have helped shorten the publication time and have improved the visibility of the articles.

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

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