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20242026
most citedChromatic Effects on the PSF and Shear Measurement for the Roman Space Telescope High-Latitude Wide Area Survey

8 citations · 12 across the 6 of their papers we have counts for

collaborators

7 papers

astro-ph.IM2026

Combining Rubin and Roman photometry and its implications for photometric redshift estimation

Tae-hyeon Shin, Rachel Mandelbaum, Chun-Hao To +14

We perform a joint Roman--Rubin photometry analysis using the LSST Science Pipelines (LSP) on simulated images, by using the Roman F158 band as the reference band and applying forc…

astro-ph.IM2026

Robust Photometry for Roman High-Latitude Imaging Survey Cosmology Using Roman and Rubin Imaging

Chun-Hao To, Tae-Hyeon Shin, Chihway Chang +18

Accurate and precise photometry is essential for Roman cosmology because it affects photometric-redshift performance, galaxy and cluster selection, tomographic binning, and redshif…

astro-ph.IM2026

Modeling the impact of filter-substrate refraction in the Roman point spread function

Federico Berlfein, Rachel Mandelbaum, Tianqing Zhang +4

For broadband imaging surveys, filter-substrate refraction causes light at different wavelengths to follow slightly different paths through the filter substrate before reaching the…

astro-ph.CO2026

Optimizing the Roman Space Telescope High-Latitude Wide Area Survey for mitigating chromatic PSF effects on shear measurement

Federico Berlfein, Rachel Mandelbaum, Jiachuan Xu +1

Chromatic point-spread-function (PSF) effects arise from differences between the spectral energy distributions (SEDs) of stars, used to model the PSF, and galaxies, used to measure…

astro-ph.IM2026

Diagnosing the Effects of Spectroscopic Training Set Imperfection on Photometric Redshift Performance

Alice Crafford, Alex I. Malz, Tianqing Zhang +11

Most LSST extragalactic science will rely on photometric redshifts (photo-) to extract distance information for the galaxies. However, an incomplete or non-representative traini…

astro-ph.CO2025★ 8 cited

Chromatic Effects on the PSF and Shear Measurement for the Roman Space Telescope High-Latitude Wide Area Survey

Federico Berlfein, Rachel Mandelbaum, Xiangchong Li +3

Weak gravitational lensing (WL) is a key cosmological probe that requires precise measurement of galaxy images to infer shape distortions, or shear, and constrain cosmology. Accura…

astro-ph.CO2024★ 4 cited

Joint inference of multiplicative and additive systematics in galaxy density fluctuations and clustering measurements

Federico Berlfein, Rachel Mandelbaum, Scott Dodelson +1

Galaxy clustering measurements are a key probe of the matter density field in the Universe. With the era of precision cosmology upon us, surveys rely on precise measurements of the…