activity
20232026
most citedSimulating image coaddition with the Nancy Grace Roman Space Telescope: I. Simulation methodology and general results

14 citations · 34 across the 10 of their papers we have counts for

collaborators

11 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

Efficient Optimal Image Reconstruction for the Nancy Grace Roman Space Telescope and Beyond: II. Implementation of {\sc Effortless}

Kaili Cao

Weak gravitational lensing is a promising but technically demanding cosmological probe. For space missions like the forthcoming Nancy Grace Roman Space Telescope, a major challenge…

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

Efficient Optimal Image Reconstruction for the Nancy Grace Roman Space Telescope and Beyond: I. First Results with {\sc Effortless}

Kaili Cao

The forthcoming Nancy Grace Roman Space Telescope will revolutionize astrophysics by generating huge amounts of data of unprecedented quality. To properly address the data deluge a…

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…

astro-ph.CO2026★ 1 cited

Fisher Forecasts for Cosmological Yields from pt Analysis of the Roman Space Telescope High Latitude Imaging Survey

Kaili Cao, David H. Weinberg, Vivian Miranda +5

The High Latitude Imaging Survey (HLIS) of NASA's Nancy Grace Roman Space Telescope will provide powerful tests of cosmological models through sensitive measurements of cosmic shea…

astro-ph.IM2025

Removing correlated noise stripes from the Nancy Grace Roman Space Telescope survey images

Katherine Laliotis, Christopher M. Hirata, Emily Macbeth +1

Weak gravitational lensing has emerged as a powerful tool for investigating the matter distribution in the Universe and how it has evolved over cosmic time. The Wide Field Instrume…

astro-ph.IM2025

Simulating Image Coaddition with the Nancy Grace Roman Space Telescope. IV. Hyperparameter Optimization and Experimental Features

Kaili Cao, Christopher M. Hirata, Katherine Laliotis +3

For weak gravitational lensing cosmology with the forthcoming Nancy Grace Roman Space Telescope, image coaddition, or construction of oversampled images from undersampled ones, is…

astro-ph.CO2025★ 12 cited

OpenUniverse2024: A shared, simulated view of the sky for the next generation of cosmological surveys

OpenUniverse, The LSST Dark Energy Science Collaboration, The Roman HLIS Project Infrastructure Team +58

The OpenUniverse2024 simulation suite is a cross-collaboration effort to produce matched simulated imaging for multiple surveys as they would observe a common simulated sky. Both t…

astro-ph.IM2023★ 7 cited

Simulating image coaddition with the Nancy Grace Roman Space Telescope: II. Analysis of the simulated images and implications for weak lensing

Masaya Yamamoto, Katherine Laliotis, Emily Macbeth +16

One challenge for applying current weak lensing analysis tools to the Nancy Grace Roman Space Telescope is that individual images will be undersampled. Our companion paper presente…

astro-ph.IM2023★ 14 cited

Simulating image coaddition with the Nancy Grace Roman Space Telescope: I. Simulation methodology and general results

Christopher M. Hirata, Masaya Yamamoto, Katherine Laliotis +16

The upcoming Nancy Grace Roman Space Telescope will carry out a wide-area survey in the near infrared. A key science objective is the measurement of cosmic structure via weak gravi…