Award Abstract # 2108841
Detecting and studying light echoes in the era of Rubin and Artificial Intelligence

NSF Org: AST
Division Of Astronomical Sciences
Recipient: UNIVERSITY OF DELAWARE
Initial Amendment Date: July 20, 2021
Latest Amendment Date: July 20, 2021
Award Number: 2108841
Award Instrument: Standard Grant
Program Manager: Nigel Sharp
nsharp@nsf.gov
 (703)292-4905
AST
 Division Of Astronomical Sciences
MPS
 Directorate for Mathematical and Physical Sciences
Start Date: August 1, 2021
End Date: July 31, 2026 (Estimated)
Total Intended Award Amount: $596,067.00
Total Awarded Amount to Date: $596,067.00
Funds Obligated to Date: FY 2021 = $596,067.00
History of Investigator:
  • Federica Bianco (Principal Investigator)
    fbianco@udel.edu
  • Austin Brockmeier (Co-Principal Investigator)
  • Armin Rest (Co-Principal Investigator)
Recipient Sponsored Research Office: University of Delaware
550 S COLLEGE AVE
NEWARK
DE  US  19713-1324
(302)831-2136
Sponsor Congressional District: 00
Primary Place of Performance: University of Delaware
Newark
DE  US  19716-2553
Primary Place of Performance
Congressional District:
00
Unique Entity Identifier (UEI): T72NHKM259N3
Parent UEI:
NSF Program(s): EXTRAGALACTIC ASTRON & COSMOLO
Primary Program Source: 01002122DB NSF RESEARCH & RELATED ACTIVIT
Program Reference Code(s): 9150, 1206
Program Element Code(s): 121700
Award Agency Code: 4900
Fund Agency Code: 4900
Assistance Listing Number(s): 47.049

ABSTRACT

This award supports building an artificial intelligence (AI)-based pipeline for the all-sky-scale automated detection and study of light echoes. Light echoes (LEs) are caused by stellar explosions lighting up cosmic dust, and they are faint, rare, diffuse, and hard to detect. The detection of all sky samples of LEs can enable the discovery of previously unknown Galactic supernovae, and permit the study of Galactic dust and the history of stellar explosions and eruptions in the Galaxy. These new AI methods will robustly re-discover old, and discover new, light echoes in both existing and future survey datasets. The project will develop essential data science skills in students at the University of Delaware and at Delaware State University, a minority- and rural population-serving HBCU. AI model architectures for efficient and reliable detection of low-signal-to-noise diffuse features can be used throughout astronomy, for medical imaging, and in ecology and urban metabolism studies.

Presently, LEs are detected by visual inspection, which is limiting and does not scale to all-sky surveys. The Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST) will observe the southern sky at frequent intervals, making it an ideal LE survey. Unfortunately, the LSST alert pipeline is optimized for point sources and will entirely miss LEs. This project will produce the first pipeline for the automated all-sky detection and study of LEs by leveraging cutting-edge AI, and support deployment of the pipeline on the LSST science platform. The team will also be providing hands-on data- and computer-science training to students from groups historically underrepresented in the STEM fields, using an immersive learning program that includes Data Science boot camps, hackathons, and mentored research opportunities. This project capitalizes on the two NSF Big Ideas of ?Harnessing the Data Revolution? and ?Growing Convergence Research?.

This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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Khakpash, Somayeh and Bianco, Federica B and Modjaz, Maryam and Fortino, Willow F and Gagliano, Alexander and Larison, Conor and Pritchard, Tyler A "Multifilter UV to Near-infrared Data-driven Light-curve Templates for Stripped-envelope Supernovae" The Astrophysical Journal Supplement Series , v.275 , 2024 https://doi.org/10.3847/1538-4365/ad7eaa Citation Details
Li, Xiaolong and Bianco, Federica B. and Dobler, Gregory and Partoush, Roee and Rest, Armin and Acero-Cuellar, Tatiana and Clarke, Riley and Fortino, Willow Fox and Khakpash, Somayeh and Lian, Ming "Toward the Automated Detection of Light Echoes in Synoptic Surveys: Considerations on the Application of Deep Convolutional Neural Networks" The Astronomical Journal , v.164 , 2022 https://doi.org/10.3847/1538-3881/ac9409 Citation Details
Partoush, Roee and Rest, Armin and Jencson, Jacob_E and Poznanski, Dovi and Foley, Ryan_J and Kilpatrick, Charles_D and Andrews, Jennifer_E and Angulo, Rodrigo and Badenes, Carles and Bianco, Federica_B and Filippenko, Alexei_V and Ridden-Harper, Ryan and "SpectAcLE: An Improved Method for Modeling Light Echo Spectra" The Astrophysical Journal , v.970 , 2024 https://doi.org/10.3847/1538-4357/ad4886 Citation Details
Rest, S and Rest, A and Kilpatrick, C D and Jencson, J E and von_Coelln, S and Strolger, L and Smartt, S and Anderson, J P and Clocchiatti, A and Coulter, D A and Denneau, L and Gomez, S and Heinze, A and Ridden-Harper, R and Smith, K W and Stalder, B and "ATClean: A Novel Method for Detecting Low-luminosity Transients and Application to Pre-explosion Counterparts from SN 2023ixf" The Astrophysical Journal , v.979 , 2025 https://doi.org/10.3847/1538-4357/ad973d Citation Details

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