activity
20172026
most citedSimulations of the WFIRST Supernova Survey and Forecasts of Cosmological Constraints

187 citations · 782 across the 37 of their papers we have counts for

collaborators

36 papers

astro-ph.CO2026

Chromatic Effects Across the Roman Focal Plane: Implications for Supernova Photometry and Measurements of Cosmological Parameters

Rujuta Purohit, Dillon Brout, Daniel Scolnic +14

Calibration uncertainties are the leading systematics in cosmological analyses using Type Ia supernovae (SNe Ia). For the \textit{Nancy Grace Roman Space Telescope (Roman)}, we qua…

astro-ph.CO2026

Calibration-Induced Systematics in SALT3 Training and Their Impact on Dark Energy Constraints from Stage IV Supernova Surveys

Kene Anumba, David O. Jones, Richard Kessler +13

In the coming years, the Vera Rubin Observatory's Legacy Survey of Space and Time (Rubin-LSST) and the Nancy Grace Roman Space Telescope's (Roman) High Latitude Time Domain Survey…

astro-ph.IM2026

Three-dimensional scene reconstruction using Roman slitless spectra

Tri L. Astraatmadja, Andrew S. Fruchter, Susana E. Deustua +10

The Nancy Grace Roman Space Telescope will carry out a wide-field imaging and slitless spectroscopic survey of Type Ia Supernovae to improve our understanding of dark energy. Cruci…

astro-ph.IM2025★ 1 cited

phrosty: A difference imaging pipeline for Roman

Lauren Aldoroty, Lei Hu, Rob Knop +11

NASA's Nancy Grace Roman Space Telescope (Roman) will provide an opportunity to study dark energy with unprecedented precision using several techniques, including measurements of T…

astro-ph.CO2025

Fishing for the Optimal Roman High Latitude Time Domain Survey: Cosmological Constraints for 1,000 Possible Surveys

David Rubin, Greg Aldering, Andy Fruchter +9

The upcoming Nancy Grace Roman Space Telescope is set to conduct a generation-defining SN Ia cosmology measurement with its High Latitude Time Domain Survey (HLTDS). However, betwe…

astro-ph.IM2025

The Hourglass Simulation: A Catalog for the Roman High-Latitude Time-Domain Core Community Survey

B. M. Rose, M. Vincenzi, R. Hounsell +12

We present a simulation of the time-domain catalog for the Nancy Grace Roman Space Telescope's High-Latitude Time-Domain Core Community Survey. This simulation, called the Hourglas…

astro-ph.CO2025

Cosmology Constraints from Type Ia Supernova Simulations of the Nancy Grace Roman Space Telescope Strategy Recommended by the High Latitude Time Domain Survey Definition Committee

Richard Kessler, Rebekah Hounsell, Bhavin Joshi +5

Within the next few years, the upcoming Nancy Grace Roman Space Telescope will be gathering data for the High Latitude Time Domain Survey (HLTDS) that will be used to significantly…

astro-ph.IM2025

Initial Characterization of Stellar Photometry of Roman images from the OpenUniverse Simulations

Lauren Aldoroty, Daniel Scolnic, Arun Kannawadi +4

NASA's Nancy Grace Roman Space Telescope (Roman) will provide an opportunity to study dark energy with unprecedented precision and accuracy using several techniques, including meas…

astro-ph.IM2025

TESSELLATE: Piecing Together the Variable Sky With TESS

Hugh Roxburgh, Ryan Ridden-Harper, Andrew Moore +13

We present TESSELLATE, a dedicated pipeline for performing an untargeted search documenting all variable phenomena captured by the TESS space telescope. Building on the TESSreduce…

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.HE2023

A 9-Month Hubble Space Telescope Near-UV Survey of M87. II. A Strongly Enhanced Nova Rate near the Jet of M87

Alec M. Lessing, Michael M. Shara, Rebekah Hounsell +3

The 135 classical novae that we have discovered in M87 with two imaging surveys appear to be strongly concentrated along that galaxy's jet. Detail…

astro-ph.SR2023

A 9-Month Hubble Space Telescope Near-UV Survey of M87. I. Light and Color Curves of 94 Novae, and a Re-determination of the Nova Rate

Michael M. Shara, Alec M. Lessing, Rebekah Hounsell +10

M87 has been monitored with a cadence of 5 days over a 9 month-long span through the near-ultraviolet (NUV:F275W) and optical (F606W) filters of the Wide Field Camera 3 (WFC3) of t…

astro-ph.IM2023★ 5 cited

Roman CCS White Paper: Measuring Type Ia Supernovae Discovered in the Roman High Latitude Time Domain Survey

Rebekah Hounsell, Dan Scolnic, Dillon Brout +14

We motivate the cosmological science case of measuring Type Ia supernovae with the Nancy Grace Roman Space Telescope as part of the High Latitude Time Domain Survey. We discuss pre…

astro-ph.HE2023★ 5 cited

A Comprehensive Investigation of Gamma-Ray Burst Afterglows Detected by TESS

Hugh Roxburgh, Ryan Ridden-Harper, Zachary G. Lane +9

Gamma-ray bursts produce afterglows that can be observed across the electromagnetic spectrum and can provide insight into the nature of their progenitors. While most telescopes tha…

astro-ph.IM2023

Roman CCS White Paper: Options to Increase the Coverage Area of Prism Time Series in the High-Latitude Time Domain Core Community Survey

Benjamin Rose, Sebastian Gomez, Rebekah Hounsell +4

The current reference High-latitude time domain survey increases the completeness of transients with prism temporal time series data by adjusting the ratio of prism-to-imaging time…

astro-ph.IM2023★ 2 cited

Roman CCS White Paper: Considerations for Selecting Fields for the Roman High-latitude Time Domain Core Community Survey

Benjamin Rose, Greg Aldering, Rebekah Hounsell +6

In this white paper, we review five top considerations for selecting locations of the fields of the Roman High-latitude Time Domain Survey. Based on these considerations, we recomm…

astro-ph.IM2023

Roman CCS White Paper: Optimizing the HLTDS Cadence at Fixed Depth

David Rubin, Ben Rose, Rebekah Hounsell +4

The current proposal for the High Latitude Time Domain Survey (HLTDS) is two tiers (wide and deep) of multi-band imaging and prism spectroscopy with a cadence of five days (Rose et…

astro-ph.IM2023★ 1 cited

Roman CCS White Paper: Balanced Prism Plus Filter Cadence in the High Latitude Time Domain Survey Core Community Survey

Greg Aldering, David Rubin, Benjamin Rose +3

The Nancy Grace Roman Space Telescope's (RST) Wide Field Imager (WFI) is equipped with a slitless prism that can be used for spectroscopic discovery and follow-up of explosive tran…

astro-ph.CO2022★ 43 cited

SALT3-NIR: Taking the Open-Source Type Ia Supernova Model to Longer Wavelengths for Next-Generation Cosmological Measurements

J. D. R. Pierel, D. O. Jones, W. D. Kenworthy +32

A large fraction of Type Ia supernova (SN Ia) observations over the next decade will be in the near-infrared (NIR), at wavelengths beyond the reach of the current standard light-cu…

astro-ph.CO2022★ 1 cited

Evaluating and Optimizing a Slitless Prism for Nancy Grace Roman Space Telescope SN Cosmology

David Rubin, Greg Aldering, Tri L. Astraatmadja +9

This work presents a set of studies addressing the use of the low-dispersion slitless prism on Roman for SN spectroscopy as part of the Roman High Latitude Time Domain Survey (HLTD…

astro-ph.GA2022★ 7 cited

High-Precision Redshifts for Type Ia Supernovae with the Nancy Grace Roman Space Telescope P127 Prism

Bhavin A. Joshi, Louis-Gregory Strolger, Russell E. Ryan +7

We present results from simulating slitless spectroscopic observations with the Nancy Grace Roman Space Telescope's (Roman) Wide-Field Instrument (WFI) P127 prism spanning 0.75 $μm…

astro-ph.CO2022★ 8 cited

A Synthetic Roman Space Telescope High-Latitude Time-Domain Survey: Supernovae in the Deep Field

Kevin X. Wang, Dan Scolnic, M. A. Troxel +14

NASA will launch the Nancy Grace Roman Space Telescope (Roman) in the second half of this decade, which will allow for a generation-defining measurement of dark energy through mult…

astro-ph.CO2021★ 29 cited

A Reference Survey for Supernova Cosmology with the Nancy Grace Roman Space Telescope

B. M. Rose, C. Baltay, R. Hounsell +33

This note presents an initial survey design for the Nancy Grace Roman High-latitude Time Domain Survey. This is not meant to be a final or exhaustive list of all the survey strateg…

astro-ph.CO2021★ 4 cited

Synergies between Vera C. Rubin Observatory, Nancy Grace Roman Space Telescope, and Euclid Mission: Constraining Dark Energy with Type Ia Supernovae

B. M. Rose, G. Aldering, M. Dai +25

We review the needs of the supernova community for improvements in survey coordination and data sharing that would significantly boost the constraints on dark energy using samples…