2 papers
astro-ph.IM2026
The R2Pub Telescopes for Surveying: An Overview and Performance Evaluation of the System
Xuan Song, Xiaofeng Wang, Jin Zhu +29
The R2Pub telescope, built by the Beijing Planetarium, is a 60 cm equatorial binocular telescope located at the Daocheng site of Yunnan Observatories in China, at an altitude of ab…
astro-ph.SR2025
Dependence of Multi-band Absolute Magnitudes and Color Indexes of the Tip of Red Giant Branch Stars on Metallicity in the Galactic Globular Clusters
Zhenzhen Shao, Shu Wang, Biwei Jiang +3
The tip of red giant branch (TRGB) stars have attracted intensive attention in recent years because their -band absolute magnitudes, $M_\rm I$, are often used for distance calib…