International Journal For Multidisciplinary Research

E-ISSN: 2582-2160   •   Impact Factor: 9.24

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

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Volume 8 Issue 2
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Mapping the Parameter Space of Triple Star Systems Stability, Tightness, and Angular Momentum

Author(s) Mr. Ravi Raja Pothuneni, Prof. Shanti Priya Devarapalli
Country India
Abstract The dynamical stability of hierarchical multiple stellar systems represents a fundamental constraint on the formation and secular evolution of eclipsing binaries (EBs). A comprehensive dynamical analysis of 97 eclipsing systems with reliable parameters is presented. Using a refined catalogue spanning spectral types from M to B, the stability of each configuration is evaluated. Statistical analysis of the current sample reveals that 98% of the configurations satisfy the stability requirement S > 1, with a median stability factor of S~4.6. A primary finding of this study is a dynamical relaxation trend in the relationship between orbital tightness (aout/ain) and specific angular momentum (hin), where momentum variance decreases significantly as hierarchical spacing increases beyond aout/ain > 25. Furthermore, for short tertiary periods (Pout < 5 years), a scarcity of systems with low specific angular momentum is observed. These results demonstrate that the stability of hierarchical multiples is independent of inner binary morphology (contact vs. semi-detached), providing a robust quantitative baseline for future N-body simulations and the characterisation of complex stellar hierarchies in high-cadence surveys.
Keywords Eclipsing binaries, tertiary components, dynamical stability
Field Physics > Astronomy
Published In Volume 8, Issue 2, March-April 2026
Published On 2026-03-03
DOI https://doi.org/10.36948/ijfmr.2026.v08i02.70329
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E-ISSN 2582-2160
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