3 papers
astro-ph.SR2025
Three Brown Dwarfs Masquerading as High-Redshift Galaxies in JWST Observations
Zhijun Tu, Shu Wang, Xiaodian Chen +1
We report the spectroscopic identification of three brown dwarf candidates -- o005_s41280, o006_s00089, and o006_s35616 -- discovered in the RUBIES using James Webb Space Telescope…
astro-ph.SR2025
Optical Flares Detected on a Contact Binary: The First Photometric and Spectroscopic Analysis of a Long-period Low Mass Ratio Contact Binary HAT 307-0007476
Ling-Zhi Li, Kai Li, Xiang Gao +10
This paper presents the photometric and spectroscopic analysis of a long-period totally eclipsing contact binary (HAT 307-0007476) for the first time. This system is a low mass rat…
astro-ph.SR2025
Periodic Variability of the Central Stars of Planetary Nebulae Surveyed through the Zwicky Transient Facility
Pinjian Chen, Xuan Fang, Xiaodian Chen +1
A consensus has been reached in recent years that binarity plays an important role in the formation and evolution of a significant fraction of planetary nebulae (PNe). Utilizing th…