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The Nancy Grace Roman Space Telescope (Roman) mission is expected to launch in the mid-2020s. Its weak lensing program is designed to enable unprecedented systematics control in photometric measurements, including shear recovery,…

Instrumentation and Methods for Astrophysics · Physics 2020-12-07 M. A. Troxel , H. Long , C. M. Hirata , A. Choi , M. Jarvis , R. Mandelbaum , K. Wang , M. Yamamoto , S. Hemmati , P. Capak

NASA's Nancy Grace Roman Space Telescope, slated to launch in October 2026, will serve a critical role in the characterization and threat assessment of near-Earth Objects (NEOs), thus contributing to national and international planetary…

NASA's Nancy Grace Roman Space Telescope is a flagship astrophysics mission planned for launch no later than May 2027. The Coronagraph Instrument (CGI) aboard Roman will demonstrate the technology for direct imaging and spectroscopy of…

Instrumentation and Methods for Astrophysics · Physics 2025-07-15 Nanaz Fathpour , Milan Mandic , Joel Shields , Zahidul Rahman , Alfredo Valverde

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 unprecedented amounts of precision to weak gravitational lensing…

Instrumentation and Methods for Astrophysics · Physics 2026-04-30 Emily Macbeth , Katherine Laliotis , Christopher M. Hirata , Christopher Merchant

NASA's next flagship mission, the Nancy Grace Roman Space Telescope, is a 2.4-meter observatory set to launch no later than May 2027. Roman features two instruments: the Wide Field Imager and the Coronagraph Instrument. Roman's Coronagraph…

Galaxy-galaxy strong gravitational lenses can constrain dark matter models and the Lambda Cold Dark Matter cosmological paradigm at sub-galactic scales. Currently, there is a dearth of images of these rare systems with high signal-to-noise…

The Nancy Grace Roman Space Telescope will survey a large area of the sky at near-infrared wavelengths with its Wide Field Instrument (WFI). The performance of the 18 WFI H4RG-10 detectors will need to be well-characterized and regularly…

Instrumentation and Methods for Astrophysics · Physics 2023-09-04 Phani Datta Velicheti , John F. Wu , Andreea Petric

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 inherently small signal, it is imperative to minimize systematic…

Instrumentation and Methods for Astrophysics · Physics 2025-12-09 Katherine Laliotis , Emily Macbeth , Christopher M. Hirata , Kaili Cao , Masaya Yamamoto , Michael Troxel

The Nancy Grace Roman Space Telescope (``Roman'') is a 2.4m space telescope scheduled for a 2026 launch. The Coronagraph Instrument (CGI) on Roman is a technology-demonstration instrument with a coronagraph and, for the first time in space,…

The Nancy Grace Roman Space Telescope (Roman) is an observatory for both wide-field observations and coronagraphy that is scheduled for launch in the mid 2020's. Part of the planned survey is a deep, cadenced field or fields that enable…

Instrumentation and Methods for Astrophysics · Physics 2021-07-07 David Rubin , Aleksandar Cikota , Greg Aldering , Andy Fruchter , Saul Perlmutter , Masao Sako

The Nancy Grace Roman Space Telescope (Roman) will perform a Galactic Exoplanet Survey (RGES) to discover bound exoplanets with semi-major axes greater than 1 au using gravitational microlensing. Roman will even be sensitive to planetary…

The Nancy Grace Roman Space Telescope (Roman), NASA's next flagship observatory, has significant mission time to be spent on surveys for general astrophysics in addition to its three core community surveys. We considered what types of…

Astrophysics of Galaxies · Physics 2024-04-23 Robyn E. Sanderson , Ryan Hickox , Christopher M. Hirata , Matthew J. Holman , Jessica R. Lu , Ashley Villar

This document summarizes how far the Nancy Grace Roman Space Telescope Coronagraph Instrument (Roman CGI) will go toward demonstrating high-contrast imaging and spectroscopic requirements for potential future exoplanet direct imaging…

The Coronagraphic Instrument onboard the Nancy Grace Roman Space Telescope is an important stepping stone towards the characterization of habitable, rocky exoplanets. In a technology demonstration phase conducted during the first 18 months…

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 Instrument (WFI) on the Nancy Grace Roman Space Telescope (Roman)…

Instrumentation and Methods for Astrophysics · Physics 2025-12-08 Katherine Laliotis , Christopher M. Hirata , Emily Macbeth , Kaili Cao

Over the past two decades, thousands of confirmed exoplanets have been detected. The next major challenge is to characterize these other worlds and their stellar systems. Much information on the composition and formation of exoplanets and…

The Nancy Grace Roman Space Telescope Coronagraph Instrument is a critical technology demonstrator for NASA's Habitable Worlds Observatory. With a predicted visible-light flux ratio detection limit of 1E-8 or better, it will be capable of…

[Abridged] The Nancy Grace Roman Space Telescope will be one of several flagship survey facilities operating over the next decade starting $\sim$2025. The deep near-IR imaging that Roman will deliver will be highly complementary to the…

Instrumentation and Methods for Astrophysics · Physics 2023-06-27 R. A. Street , S. Gough-Kelly , C. Lam , A. Varela , M. Makler , E. Bachelet , J. R. Lu , N. Abrams , A. Pusack , S. Terry , R. Di~Stefano , Y. Tsapras , M. P. G. Hundertmark , R. J. J. Grand , T. Daylan , J. Sobeck

Over the past two decades, thousands of confirmed exoplanets have been detected; the next major challenge is to characterize these other worlds and their stellar systems. Much information on the composition and formation of exoplanets and…

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 gravitational lensing. Roman data will be undersampled, which…

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