Skip to main content
Log in

Equilibrium points and their linear stability in the planar equilateral restricted four-body problem: a review and new results

  • Original Article
  • Published:
Astrophysics and Space Science Aims and scope Submit manuscript

Abstract

In this work, we revisit the planar restricted four-body problem to study the dynamics of an infinitesimal mass under the gravitational force produced by three heavy bodies with unequal masses, forming an equilateral triangle configuration. We unify known results about the existence and linear stability of the equilibrium points of this problem which have been obtained earlier, either as relative equilibria or a central configuration of the planar restricted \((3 + 1)\)-body problem. It is the first attempt in this direction. A systematic numerical investigation is performed to obtain the resonance curves in the mass space. We use these curves to answer the question about the existing boundary between the domains of linear stability and instability. The characterization of the total number of stable points found inside the stability domain is discussed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13
Fig. 14
Fig. 15
Fig. 16

Similar content being viewed by others

Data Availability

Data sharing is not applicable to this article as no new data were created or analyzed in this study.

References

Download references

Acknowledgements

The first author was supported by a UAM fellowship of doctoral studies. The second author was partially supported by Special Program to Support Teaching and Research Projects 2021 from CBI UAM-Iztapalapa (México).

The authors would like to thank the anonymous reviewers for their comments and fruitful suggestions to improve the quality of the paper.

Funding

This study was funded by the Universidad Autónoma Metropolitana (Metropolitan Autonomous University) Mexico.

Author information

Authors and Affiliations

Authors

Contributions

José Alejandro Zepeda Ramírez and Martha Alvarez-Ramírez contributed to the design and implementation of the research, to the analysis of the results and to the writing of the manuscript.

Corresponding author

Correspondence to Martha Alvarez–Ramírez.

Ethics declarations

Conflict of Interest

The authors declare that they have no conflict of interest.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zepeda Ramírez, J.A., Alvarez–Ramírez, M. Equilibrium points and their linear stability in the planar equilateral restricted four-body problem: a review and new results. Astrophys Space Sci 367, 77 (2022). https://doi.org/10.1007/s10509-022-04108-8

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s10509-022-04108-8

Keywords

Navigation