Year: 2025
Type: preprint
Abstract: 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 Type Ia Supernovae (SNe Ia). Here, we present `phrosty` (PHotometry for ROman with SFFT for tYpe Ia supernovae): a difference imaging pipeline for measuring the brightness of transient point sources in the sky, primarily SNe Ia, using Roman data. `phrosty` is written in Python. We implement a GPU-accelerated version of the Saccadic Fast Fourier Transform (SFFT) method for difference imaging.
Source: arXiv (Cornell University)
DOI: 10.13016/m28rxu-dtt5
Authors: Aldoroty, Lauren, Hu, Lei, Knop, Rob, Meldorf, Cole, Scolnic, Daniel, Liu, Shu, Wood-Vasey, W. Michael, Manos, Marcus, Erlandson, Lucas, Hounsell, Rebekah, Rose, Ben, Sako, Masao, Troxel, Michael, Team, The Roman Supernova Cosmology Project Infrastructure
Language: English
Subfield: Instrumentation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7102513852