

H–R diagrams for the binary systems HD 130669, HD 184467, HD 191854, and HD 214222. The positions of the individual stellar components (A and B) are plotted with their respective uncertainties. Evolutionary tracks corresponding to different stellar masses are shown by black lines, while the system’s best-fitting isochrone (age) is indicated by a red dotted line. The Zero-Age Main Sequence (ZAMS) is depicted as a thick solid black line. These diagrams were constructed using the evolutionary models to determine the masses and ages of the components based on their effective temperatures and luminosities. — astro-ph.EP
This work analyzes four Sun-like double-lined spectroscopic binary (SB2) systems by combining visual and spectroscopic observational data with Al-Wardat’s atmospheric modeling method to accurately determine their fundamental parameters.
For each system, we determine stellar masses, orbital parallaxes, effective temperatures, spectral types, semimajor axes, and eccentricities with high precision, resolving discrepancies between astrometric and spectroscopic measurements.
Moreover, we assess the potential for stable planetary orbits in these systems. We also calculate habitable zones around these binaries based on the orbital evolution of planetary orbits.
These systems may represent promising targets for future extrasolar planet searches around Sun-like stars due to their robust physical and orbital parameters that can be used to determine planetary habitability and stability.
Ahmad Abushattal, Nikolaos Georgakarakos, Mashhoor A. Al-Wardat, Bilal Algnamat, Hassan B. Haboubi, Deshinta Arrova Dewi, Enas M. Abu-Alrob, Abdallah M. Hussein
Comments: Published in AJ
Subjects: Earth and Planetary Astrophysics (astro-ph.EP); Solar and Stellar Astrophysics (astro-ph.SR)
Cite as: arXiv:2512.23652 [astro-ph.EP] (or arXiv:2512.23652v1 [astro-ph.EP] for this version)
https://doi.org/10.48550/arXiv.2512.23652
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Journal reference: The Astronomical Journal, 2025, Volume 170, Issue 5, id.268, 15 pp
Related DOI:
https://doi.org/10.3847/1538-3881/ae0582
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Submission history
From: Nikolaos Georgakarakos Ph.D.
[v1] Mon, 29 Dec 2025 18:04:34 UTC (749 KB)
https://arxiv.org/abs/2512.23652
astrobiology,





