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Open Access Article

Perturbed Robe’s restricted problem of 2+2 bodies when the primaries form a Roche ellipsoid-triaxial system

pp. 99–117Vol. 14Issue 2July 2016DOI: 10.1080/1726037X.2016.1250498XML
Received:
05 Sep 2015
Accepted:
10 Jan 2016
Published Online:
28 Oct 2016
Article type:
Article
Language:
EN
Article no.:
1726037X.2016.1250498
Pages:
99–117

Abstract

The aim of this paper is to study the effect of perturbations in the Coriolis and centrifugal forces on the location and stability of the equilibrium solutions in the Robe’s restricted problem of 2+2 bodies under the assumption that the hydrostatic equilibrium figure of the first primary is a Roche ellipsoid and the shape of the second primary is triaxial. The third and the fourth bodies (of mass m3 and m4 respectively) are small solid spheres of density ρ3 and ρ4 respectively inside the ellipsoid, with the assumption that the mass and the radius of the third and the fourth body are infinitesimal. We assume that m2 is describing a circle around m1. The masses m3 and m4 mutually attract each other, do not influence the motion of m1 and m2 but are influenced by them. We have taken into consideration all the three components of the pressure field in deriving the expression for the buoyancy force viz (i) due to the own gravitational field of the fluid (ii)that originating in the attraction of m2 (iii) that arising from the centrifugal force. The linear stability of this configuration is examined. It is observed that there exist only six equilibrium solutions of the system, provided they lie within the Roche ellipsoid. The equilibrium solutions of m3 and m4 lying on x1-axis are unstable for ε > 0, ε′ > 0 and ε 0 and stable for ε > 0, ε′

Keywords

Subject Classifications

70F1537N05

References

  1. K.B.Bhatnagar, P.P.Hallan, Effect of Perturbations in coriolis and centrifugal forces on the stability of libration points in the restricted problem , Celestial Mechanics 18 , 105 – 112 ( 1978 ). doi: 10.1007/BF01228710
  2. S.Chandrashekhar, Ellipsoidal Figures of Equilibrium (Chapter 8) , Dover Publication Inc , New York, 1987 .
  3. P.P.Hallan, N.Rana, The existence and stability of equilibrium Points in the Robe’s restricted three-body problem’ , Celestial Mechanics and Dynamical Astronomy 79 , 145 – 155 ( 2001 ). doi: 10.1023/A:1011173320720
  4. P.P.Hallan, N.Rana, Effect of perturbations in the Coriolis and centrifugal forces on the locations and stability of the equilibrium point in the Robe’s circular problem with density parameter having arbitrary value , Indian J. pure appl. Math., 34 ( 7 ), 1045 – 1059 ( 2003 ).
  5. P.P.Hallan, K.B.Mangang, Existence and linear stability of equilibrium points in the Robe’s restricted three-body problem when the first primary is an oblate spheroid , Planetary and Space Science 55 , 512 – 516 ( 2007 ). doi: 10.1016/j.pss.2006.10.002
  6. BhavneetKaur, RajivAggarwal, Robe’s restricted problem of 2+2 bodies when the bigger primary is a Roche ellipsoid, Acta Astronautica , Volume 89, August-September 2013, Pages 31–37, .
  7. BhavneetKaur, RajivAggarwal, Robe’s problem: Its extension to 2+2 bodies’ , Astrophysics and Space Science, 339 , 283 – 294 ( 2012 ). doi: 10.1007/s10509-012-0991-z
  8. BhavneetKaur, RajivAggarwal, Robe’s restricted problem of 2+2 bodies when the bigger primary is a Roche ellipsoid and the smaller primary is an oblate body’ , Astrophysics and Space Science, ISSN 0004–640X, ( 2013 ).
  9. A.R.Plastino, A.Plastino, Robe’s restricted three-body problem revisited , Celestial Mechanics and Dynamical Astronomy 61 , 197 – 206 ( 1995 ). doi: 10.1007/BF00048515
  10. H.A.G.Robe, A new kind of three-body problem’ , Celestial Mechanics 16 , 343 – 351 ( 1977 ). doi: 10.1007/BF01232659
  11. A.K.Shrivastava, D.Garain, Effect of perturbation on the location of libration point in the Robe restricted problem of three bodies , Celest. Mech. & Dyn. Astr. 51 , 67 – 73 ( 1991 ). doi: 10.1007/BF02426670
  12. J.Singh, H.L.Mohammed, Robe’s circular restricted three-body problem under oblate and triaxial primaries , Earth, Moon, and Planets 109 , 1 – 11 ( 2012 ). doi: 10.1007/s11038-012-9397-8
  13. J.Singh, A.U.Sandah, Existence and linear stability of equilibrium points in the Robe’s restricted Three-body problem with oblateness , Advances in Mathematical Physics , 18 pages ( 2012 ).
  14. J.Singh, H.L.Mohammed, Out-of-plane equilibrium points and their stability in the Robe’s problem with oblateness and triaxiality , Astrophysics and Space Science 345 , 265 – 271 ( 2013 ). doi: 10.1007/s10509-013-1414-5
  15. V.Szebehely, C.F.Peters, Complete solution of a general problem of three bodies , Astronomical Journal 72 : 876 – 883 , ( 1967 ). doi: 10.1086/110355
  16. A.L.Whipple, Equilibrium solutions of the restricted problem of 2+2 bodies , Celestial Mechanics 33 , 271 – 294 ( 1984 ). doi: 10.1007/BF01230509
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