2 papers
astro-ph.SR2026
CW Cas: A solar-type contact binary system with an unseen third companion in a hierarchical quadruple system
Matekov Azizbek, Azizbek Matekov, Zhu Liying +25
We present a comprehensive multiband photometric and spectroscopic study of the G-type binary CW Cas whose parameters have not been well determined. Our double-lined spectroscopic…
astro-ph.SR2026
HD 26172: an active solar-type subgiant in a close binary system
Fang-Bin Meng, Li-Ying Zhu, Sheng-Bang Qian +5
We present the first comprehensive photometric and spectroscopic analysis of the RS CVn system HD 26172, robustly determining the previously debated evolutionary state of its prima…