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LOCATIONS OF OUT-OF-PLANE EQUILIBRIUM POINTS IN THE ELLIPTIC RESTRICTED THREE-BODY PROBLEM UNDER RADIATION AND OBLATENESS EFFECTS

  • HUDA, IBNU NURUL (Undergraduate Program in Astronomy, Bandung Institute of Technology) ;
  • DERMAWAN, BUDI (Astronomy Research Division, Bandung Institute of Technology) ;
  • WIBOWO, RIDLO WAHYUDI (Graduate Program in Computational Science, Bandung Institute of Technology) ;
  • HIDAYAT, TAUFIQ (Astronomy Research Division, Bandung Institute of Technology) ;
  • UTAMA, JUDHISTIRA ARYA (Graduate Program in Astronomy, Bandung Institute of Technology) ;
  • MANDEY, DENNY (Graduate Program in Astronomy, Bandung Institute of Technology) ;
  • TAMPUBOLON, IHSAN (Undergraduate Program in Astronomy, Bandung Institute of Technology)
  • Received : 2014.11.30
  • Accepted : 2015.06.30
  • Published : 2015.09.30

Abstract

This study deals with the generalization of the Elliptic Restricted Three-Body Problem (ER3BP) by considering the effects of radiation and oblate spheroid primaries. This may illustrate a gas giant exoplanet orbiting its host star with eccentric orbit. In the three dimensional case, this generalization may possess two additional equilibrium points ($L_{6,7}$, out-of-plane). We determine the existence of $L_{6,7}$ in ER3BP under the effects of radiation (bigger primary) and oblateness (small primary). We analytically derive the locations of $L_{6,7}$ and assume initial approximations of (${\mu}-1$, ${\pm}\sqrt{3A_2}$), where ${\mu}$ and $A_2$ are the mass parameter and oblateness factor, respectively. The fixed locations are then determined. Our results show that the locations of $L_{6,7}$ are periodic and affected by $A_2$ and the radiation factor ($q_1$).

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References

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