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astro-ph.HE2025
High-redshift quasars at -- III. Parsec-scale jet properties from VLBI observations
Shaoguang Guo, Tao An, Yuanqi Liu +5
High redshift active galactic nuclei (AGN) provide key insights into early supermassive black hole growth and cosmic evolution. This study investigates the parsec-scale properties…
astro-ph.IM2025
Development and Performance Validation of a Versatile VLBI Digital Backend Using the ROACH2 Platform
Jiyun Li, Renjie Zhu, Shaoguang Guo +2
Customized digital backends for Very Long Baseline Interferometry (VLBI) are critical components for radio astronomy observatories. There are several serialized products such as th…