2 papers
astro-ph.GA2026
Early Emergence of Environmental Effects: Accelerated Galaxy Assembly in a z=2.96 Protocluster in the COSMOS Field
Shuaiyi Li, Zheng Cai, Yunjing Wu +4
The redshift range z=2-4 marks a critical transition in large scale structure formation, where the dynamically unrelaxed progenitors of local massive clusters undergo rapid stellar…
astro-ph.GA2026
Pre-Virialized Assembly at Cosmic Dawn: The Dynamics and Extreme Ionization of Compact Group CGG-z7 at
Xiaoyang Wei, Zheng Cai, Fujiang Yu +2
We report the discovery of CGG-z7, the most compact galaxy group at identified to the north of the GOODS-North field, observed by the JWST POPPIES program. The system c…