phrosty: A difference imaging pipeline for Roman
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arXiv
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914052041605120 |
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| author | 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 |
| author_facet | 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 |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18544 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | phrosty: A difference imaging pipeline for Roman 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 Instrumentation and Methods for Astrophysics 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. |
| title | phrosty: A difference imaging pipeline for Roman |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2509.18544 |