Author

J. Newman

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Review Sep 2026

Model-Independent Measurement of Baryon Gas Fractions through Galaxy-Galaxy Lensing and the Kinematic Sunyaev-Zel'dovich Effect

Baryon feedback is a leading source of systematic uncertainty for cosmology from weak lensing, but measurements of the gas distribution around galaxies have largely relied on parametric profile models or simulation-calibrated frameworks. We present model independent measurements of the radial gas fraction profile aroun...

R. Liu, U. Seljak, S. Ferraro et al. · 0 citations

Review Oct 2026

Extending SOMPZ beyond Spectroscopic Coverage for Roman Weak Lensing

Precision weak lensing cosmology requires accurate galaxy redshift distributions. However, the spectroscopic samples used to characterize these distributions do not fully span the magnitude--color--redshift space of weak lensing source galaxies, necessitating extrapolation. This challenge will be critical at the depth...

Yu-Fei Zhen, C. To, B. Yin et al. · 0 citations