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20232026
most citedDoppler Constraints on Planetary Companions to Nearby Sun-like Stars: An Archival Radial Velocity Survey of Southern Targets for Proposed NASA Direct Imaging Missions

34 citations · 94 across the 10 of their papers we have counts for

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10 papers · 1 filter

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

PSFSim: PhySics First Simulations for the Point Spread Function of the Roman Space Telescope

Nihar Dalal, Chris Hirata, Charuhas Shiveshwarkar +6

We present a new tool for generating simulated point spread functions (PSFs) in the Wide Field Instrument (WFI) of the Nancy Grace Roman Space Telescope. The simulation tool is phy…

astro-ph.IM2026

Charge diffusion and modulation transfer function in a Nancy Grace Roman Space Telescope detector

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

The Nancy Grace Roman Space Telescope (Roman) is an observatory motivated by the search to understand dark energy, exoplanets, and general astrophysics. Roman will bring unpreceden…

astro-ph.IM2026★ 14 cited

The Vera C. Rubin Observatory Data Preview 1

Vera C Rubin Observatory Team, Tatiana Acero Cuellar, Emily Acosta +325

We present Rubin Data Preview 1 DP1, the first data from the NSF DOE Vera C Rubin Observatory, comprising raw and calibrated single epoch images, coadds, difference images, detecti…

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.IM2024★ 7 cited

Analysis of biasing from noise from the Nancy Grace Roman Space Telescope: implications for weak lensing

Katherine Laliotis, Emily Macbeth, Christopher M. Hirata +3

The Nancy Grace Roman Space Telescope, set to launch in 2026, will bring unprecedented precision to measurements of weak gravitational lensing. Because weak lensing is an inherentl…

astro-ph.IM2024★ 6 cited

Simulating image coaddition with the Nancy Grace Roman Space Telescope: III. Software improvements and new linear algebra strategies

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

The Nancy Grace Roman Space Telescope will implement a devoted weak gravitational lensing program with its High Latitude Wide Area Survey. For cosmological purposes, a critical ste…

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…