Author

Yong-Da Zhu

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Preprint Sep 2026

A 210 Megaparsec Ionized Structure at $z=6.8$ Revealed by an Astrophysics Foundation Model

Reionization is the last major transition in the Universe that transforms the intergalactic medium (IGM) from neutral to highly ionized, yet its spatial structure remains poorly constrained. Using an astrophysics foundation model trained for James Webb Space Telescope datasets, we identify a luminous galaxy at redshift...

M. Yue, Yong-Da Zhu, Jia-Ni Ding et al. · 0 citations

Review Open access Sep 2026

Q-IFU: A JWST/NIRSpec Integral Field Unit Survey of Luminous Quasars at z ∼ 5–6: Rest-frame Optical Nuclear Properties and Extended Nebulae

It remains debatable how billion-solar-mass supermassive black holes (SMBHs) form and evolve within the first billion years. We report results from a James Webb Space Telescope (JWST)/NIRSpec integral field unit (IFU) survey of 27 luminous quasars at z ∼ 5–6, enabling a systematic investigation of their key physical pr...

Wei-Zhe Liu, Xiao-Hui Fan, Richard Green et al. · Astrophysical Journal · 0 citations

Review Sep 2026

Learning JWST. I. A Foundation Model for New Population Discoveries and Morphology-Aware Photometric Redshift Measurements in the JADES Survey

We present FM-JADES-v1, a self-supervised foundation model for James Webb Space Telescope ({\em JWST}) deep-field science, trained with 482,444 objects from the {\em JWST} Advanced Deep Extragalactic Survey (JADES) Data Release 5 using multi-band imaging and the photometric catalog. The shared embedding space is traine...

Jia-Ni Ding, M. Yue, Yong-Da Zhu et al. · 1 citation