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Enabling Early Transient Discovery in LSST via Difference Imaging with DECam

Fuente: arXiv

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Autori principali:	Dong, Yize, de Soto, Kaylee, Villar, V. Ashley, Nugent, Anya, Gagliano, Alex, Bostroem, K. Azalee, Alexov, Anastasia, Aubourg, Éric, Azfar, Farrukh, Boucaud, Alexandre, Bradshaw, Andrew, Cohen-Tanugi, Johann, Dagoret-Campagne, Sylvie, Daly, Phil N., Daruich, Felipe, Doherty, Peter E., Drass, Holger, Eiger, Orion, Guy, Leanne P., Hascall, Patrick A., Ivezić, Željko, Jammes, Fabrice, Jee, M. James, Jenness, Tim, Kahn, Steven M., Kang, Yijung, Kelvin, Lee S., Kotov, Ivan V., Kovács, Gábor, Guillou, Laurent Le, Liang, Shuang, Lutfi, Mostafa, May, Morgan, Homar, Guillem Megias, Moniez, Marc, Arancibia, Freddy Muñoz, Nourbakhsh, Erfan, Park, Hye Yun, Peterson, John R., Malagón, Andrés A. Plazas, Polin, Daniel, Quint, Bruno C., Ribeiro, Tiago, Riot, Vincent J., Roucelle, Cécile, Sánchez, Bruno O., Sanmartim, David, Sebag, Jacques, Sedaghat, Nima, Shaw, Richard A., Shugart, Alysha, Elorriaga, Ioana Sotuela, Suberlak, Krzysztof, Swinbank, John D., Thomas, Sandrine, Tyson, J. Anthony, van Reeven, Wouter, Ward, Charlotte, Waters, Christopher Z., Wiecha, Oliver, Wood-Vasey, W. M.
Natura:	Preprint
Pubblicazione:	2025
Soggetti:	High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics
Accesso online:	Acceder al recurso
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author	Dong, Yize de Soto, Kaylee Villar, V. Ashley Nugent, Anya Gagliano, Alex Bostroem, K. Azalee Alexov, Anastasia Aubourg, Éric Azfar, Farrukh Boucaud, Alexandre Bradshaw, Andrew Cohen-Tanugi, Johann Dagoret-Campagne, Sylvie Daly, Phil N. Daruich, Felipe Doherty, Peter E. Drass, Holger Eiger, Orion Guy, Leanne P. Hascall, Patrick A. Ivezić, Željko Jammes, Fabrice Jee, M. James Jenness, Tim Kahn, Steven M. Kang, Yijung Kelvin, Lee S. Kotov, Ivan V. Kovács, Gábor Guillou, Laurent Le Liang, Shuang Lutfi, Mostafa May, Morgan Homar, Guillem Megias Moniez, Marc Arancibia, Freddy Muñoz Nourbakhsh, Erfan Park, Hye Yun Peterson, John R. Malagón, Andrés A. Plazas Polin, Daniel Quint, Bruno C. Ribeiro, Tiago Riot, Vincent J. Roucelle, Cécile Sánchez, Bruno O. Sanmartim, David Sebag, Jacques Sedaghat, Nima Shaw, Richard A. Shugart, Alysha Elorriaga, Ioana Sotuela Suberlak, Krzysztof Swinbank, John D. Thomas, Sandrine Tyson, J. Anthony van Reeven, Wouter Ward, Charlotte Waters, Christopher Z. Wiecha, Oliver Wood-Vasey, W. M.
author_facet	Dong, Yize de Soto, Kaylee Villar, V. Ashley Nugent, Anya Gagliano, Alex Bostroem, K. Azalee Alexov, Anastasia Aubourg, Éric Azfar, Farrukh Boucaud, Alexandre Bradshaw, Andrew Cohen-Tanugi, Johann Dagoret-Campagne, Sylvie Daly, Phil N. Daruich, Felipe Doherty, Peter E. Drass, Holger Eiger, Orion Guy, Leanne P. Hascall, Patrick A. Ivezić, Željko Jammes, Fabrice Jee, M. James Jenness, Tim Kahn, Steven M. Kang, Yijung Kelvin, Lee S. Kotov, Ivan V. Kovács, Gábor Guillou, Laurent Le Liang, Shuang Lutfi, Mostafa May, Morgan Homar, Guillem Megias Moniez, Marc Arancibia, Freddy Muñoz Nourbakhsh, Erfan Park, Hye Yun Peterson, John R. Malagón, Andrés A. Plazas Polin, Daniel Quint, Bruno C. Ribeiro, Tiago Riot, Vincent J. Roucelle, Cécile Sánchez, Bruno O. Sanmartim, David Sebag, Jacques Sedaghat, Nima Shaw, Richard A. Shugart, Alysha Elorriaga, Ioana Sotuela Suberlak, Krzysztof Swinbank, John D. Thomas, Sandrine Tyson, J. Anthony van Reeven, Wouter Ward, Charlotte Waters, Christopher Z. Wiecha, Oliver Wood-Vasey, W. M.
contents	We present SLIDE, a pipeline that enables transient discovery in data from the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST), using archival images from the Dark Energy Camera (DECam) as templates for difference imaging. We apply this pipeline to the recently released Data Preview 1 (DP1; the first public release of Rubin commissioning data) and search for transients in the resulting difference images. The image subtraction, photometry extraction, and transient detection are all performed on the Rubin Science Platform. We demonstrate that SLIDE effectively extracts clean photometry by circumventing poor or missing LSST templates. We identified 29 previously unreported transients, 12 of which would not have been detected based on the DP1 DiaObject catalog. SLIDE will be especially useful for transient analysis in the early years of LSST, when template coverage will be largely incomplete or when templates may be contaminated by transients present at the time of acquisition. We present multiband light curves for a sample of known transients, along with new transient candidates identified through our search. Finally, we discuss the prospects of applying this pipeline during the main LSST survey. Our pipeline is broadly applicable and will support studies of all transients with slowly evolving phases.
format	Preprint
id	arxiv_https___arxiv_org_abs_2507_22156
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	Enabling Early Transient Discovery in LSST via Difference Imaging with DECam Dong, Yize de Soto, Kaylee Villar, V. Ashley Nugent, Anya Gagliano, Alex Bostroem, K. Azalee Alexov, Anastasia Aubourg, Éric Azfar, Farrukh Boucaud, Alexandre Bradshaw, Andrew Cohen-Tanugi, Johann Dagoret-Campagne, Sylvie Daly, Phil N. Daruich, Felipe Doherty, Peter E. Drass, Holger Eiger, Orion Guy, Leanne P. Hascall, Patrick A. Ivezić, Željko Jammes, Fabrice Jee, M. James Jenness, Tim Kahn, Steven M. Kang, Yijung Kelvin, Lee S. Kotov, Ivan V. Kovács, Gábor Guillou, Laurent Le Liang, Shuang Lutfi, Mostafa May, Morgan Homar, Guillem Megias Moniez, Marc Arancibia, Freddy Muñoz Nourbakhsh, Erfan Park, Hye Yun Peterson, John R. Malagón, Andrés A. Plazas Polin, Daniel Quint, Bruno C. Ribeiro, Tiago Riot, Vincent J. Roucelle, Cécile Sánchez, Bruno O. Sanmartim, David Sebag, Jacques Sedaghat, Nima Shaw, Richard A. Shugart, Alysha Elorriaga, Ioana Sotuela Suberlak, Krzysztof Swinbank, John D. Thomas, Sandrine Tyson, J. Anthony van Reeven, Wouter Ward, Charlotte Waters, Christopher Z. Wiecha, Oliver Wood-Vasey, W. M. High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics We present SLIDE, a pipeline that enables transient discovery in data from the Vera C. Rubin Observatory's Legacy Survey of Space and Time (LSST), using archival images from the Dark Energy Camera (DECam) as templates for difference imaging. We apply this pipeline to the recently released Data Preview 1 (DP1; the first public release of Rubin commissioning data) and search for transients in the resulting difference images. The image subtraction, photometry extraction, and transient detection are all performed on the Rubin Science Platform. We demonstrate that SLIDE effectively extracts clean photometry by circumventing poor or missing LSST templates. We identified 29 previously unreported transients, 12 of which would not have been detected based on the DP1 DiaObject catalog. SLIDE will be especially useful for transient analysis in the early years of LSST, when template coverage will be largely incomplete or when templates may be contaminated by transients present at the time of acquisition. We present multiband light curves for a sample of known transients, along with new transient candidates identified through our search. Finally, we discuss the prospects of applying this pipeline during the main LSST survey. Our pipeline is broadly applicable and will support studies of all transients with slowly evolving phases.
title	Enabling Early Transient Discovery in LSST via Difference Imaging with DECam
topic	High Energy Astrophysical Phenomena Instrumentation and Methods for Astrophysics
url	https://arxiv.org/abs/2507.22156