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astro-ph.GA2026
Age and Mass Signatures in the Multiband Second-order Image Structure of Young Star Clusters in M31
Yuan Liang, Chao-Wei Tsai, Jingwen Wu
The ages and masses of star clusters may leave systematic signatures in the second-order spatial structure of semi-resolved photometric images. To test this hypothesis, we analyze…
astro-ph.GA2026
Hessian-based photometric substructure as an evolutionary tracer of OB cluster candidates in M31
Yuan Liang, Chao-Wei Tsai, Jingwen Wu
Using \textit{Hubble Space Telescope} images from the PHAT and PHAST surveys, we construct an updated catalogue of 747 OB cluster (OBC) candidates. We introduce a dimensionless str…
astro-ph.IM2026
A Python/CuPy Software Correlator for QUEST: Real-Time Performance and Initial Imaging
Jialang Ding, Guanhong Lin, Dejia Zhou +20
We present a Python/CuPy FX software correlator for small radio interferometer arrays and evaluate it on QUEST (Qilu University Explorer Survey Telescope). The system combines mult…