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astro-ph.CO2026
Extending SOMPZ beyond Spectroscopic Coverage for Roman Weak Lensing
Yufei Zhen, Chun-Hao To, Boyan Yin +7
Precision weak lensing cosmology requires accurate galaxy redshift distributions. However, the spectroscopic samples used to characterize these distributions do not fully span the…
astro-ph.CO2026
Accurate modeling for 32pt analyses in Roman and Rubin: a study of model approximations
Junzhou Zhang, Chihway Chang, Jiachuan Xu +6
One of the pillars of modern cosmology is the use of galaxy imaging surveys to extract information from the large-scale structure. In recent surveys, this measurement is typically…