Stellar Parameters and Evolutionary Pathways of the Subgiant system HIP 72217

2025/10/30 by Nazar, Naufa, Al-Wardat, Mashhoor A., Abushattal, Ahmad +1
#FOS: Physical sciences #Solar and Stellar Astrophysics (astro-ph.SR)

paper · doi:10.48550/arxiv.2510.26224

Abstract

In this study, we applied Al-Wardat's method to analyze the subgiant system HIP72217 for which we obtained accurate parameters including stellar masses, effective temperatures (T_eff) and system age.For the primary component we determined a stellar mass of M_A = 1.14 ± 0.15 M_\odot and effective temperature T_eff,A = 6125 ± 50 K while for the secondary component we obtained the values of M_B = 1.12 ± 0.14 M_\odot and T_eff,2 = 5950 ± 50 K. The system's age was estimated to be 3.548 Gyr, which is consistent with the predicted evolutionary period of a subgiant binary. The evolutionary timeline of HIP 72217 becomes clearer through our study, which also demonstrates Al-Wardat's approach as an effective approach for binary star system characterization. These findings contribute to a better understanding of the physical mechanisms that control subgiant binary evolution and their broader role in stellar evolutionary processes.

Citations

• Accurate masses and radii of normal stars: modern results and applications
• Parameters of the components of visually close binary systems: Hip 11352

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