Published April 25, 2026
| Version QR2-2026-04-24
Dataset
Open
The SPHEREx Photometry and Image Fitting Framework (SPIFF) Spectrophotometry Library
Authors/Creators
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Gagné, Jonathan1
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Faherty, Jacqueline K.2
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Ruiz Diaz, Azul1
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Coulombe, Louis-Philippe1
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Bickle, Thomas P.3
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Schneider, Adam C.4
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Kirkpatrick, J. Davy5
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Kuchner, Marc J.6
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Meisner, Aaron M.7
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Caselden, Dan2
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Burgasser, Adam J.8
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Casewell, Sarah9
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Honaker, Easton J.10
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Kiwy, Frank11
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Marocco, Federico5
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Andersen, Nikolaj Stevnbak11
- Ruiz Arroyo, Lizzeth11
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Baller, Bruce11
- Beaulieu, Paul11
- Bell, John11
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Bilsing, Martin11
- Bohling, Troy K.11
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Colin, Guillaume11
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Colombo, Giovanni11
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Deen, Sam11
- Dereveanco, Alexandru11
- Dixon, Kevin11
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Durantini Luca, Hugo A.11
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Flores, Deiby11
- Franck, Christoph11
- Fulvi, Christopher11
- Gallmann, Michael11
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Gantier, Jean Marc11
- Glebov, Konstantin11
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Gramaize, Léopold11
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Hamlet, Leslie K.11
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Hinckley, Ken11
- Jablonski, Kevin11
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Jałowiczor, Peter A.11
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Kabatnik, Martin11
- Kasprowitz, Peter11
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Ly, K11
- Martin, David W.11
- Marzak, Naoufel11
- McColgan, Alexander11
- McEwan, Neil J.11
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Michaels, Marianne N.11
- Pendrill, William11
- Perlin, Stéphane11
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Pumphrey, Ben11
- Rabe, James11
- Raway, Henry11
- Robledo, Walter Ruben11
- Roser, David11
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Roy, Animesh12
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Sainio, Arttu11
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Schindler, Vincent11
- Schonau, Manfred11
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Schümann, Jörg11
- Selg-Mann, Karl11
- Serio, Andrea11
- Smith, Patrick11
- Stenner, Andres11
- Tanner, Christopher11
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Thévenot, Melina11
- Thakur, Vinod11
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Torres Guerrero, Mayahuel11
- Ventura, Maurizio11
- Voloshin, Nikita V.11
- Walla, Jim11
- Wędracki, Zbigniew11
- Weyandt, Bailey11
- Wilhite, Breck11
- Zitouni, Spartacus11
- 1. Planétarium de Montréal, Espace pour la Vie, 4801 av. Pierre-de Coubertin, Montréal, Québec, Canada ; Trottier Institute for Research on Exoplanets, Université de Montréal, Département de Physique, C.P. 6128 Succ. Centre-ville, Montréal, QC H3C 3J7, Canada
- 2. Department of Astrophysics, American Museum of Natural History, Central Park West, New York, NY, USA
- 3. School of Physical Sciences, The Open University, Milton Keynes, MK7 6AA, UK
- 4. United States Naval Observatory, Flagstaff Station, 10391 West Naval Observatory Rd., Flagstaff, AZ 86005, USA
- 5. IPAC, Mail Code 100-22, Caltech, 1200 E. California Blvd., Pasadena, CA 91125, USA
- 6. Exoplanets and Stellar Astrophysics Laboratory, NASA Goddard Space Flight Center, 8800 Greenbelt Road, Greenbelt, MD 20771, USA
- 7. NSF's National Optical-Infrared Astronomy Research Laboratory, 950 N. Cherry Ave., Tucson, AZ 85719, USA
- 8. Center for Astrophysics and Space Sciences, University of California San Diego, La Jolla, CA 92093, USA
- 9. School of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK
- 10. Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA
- 11. Backyard Worlds: Planet 9, USA
- 12. Rajshahi University of Engineering & Technology, Kazla, Rajshahi-6204, Bangladesh ; Backyard Worlds: Planet 9, USA
Description
SPIFF is a Python spectrophotometry extraction tool for fast-moving point sources detected by the SPHEREx mission. This QR2-2026-04-24 data package bundles the QR2 SPIFF spectral-library snapshot published in Gagné et al. (2026, submitted to ApJ).
The bundled release includes 6003 high-quality reduced spectra, matching unbinned SPIFF spectra, per-dataset autotype PNG archives organized by science sample, template CSV products for 47 published standard subtypes, and the regenerated SPIFF machine-readable tables staged for release.
Source sample counts reflected in this bundle are: 2050 known ultracool dwarfs, 3008 known photometric candidates, 947 newly identified ultracool dwarfs, and 3739 candidate peculiar, young ultracool dwarfs and subdwarfs.
Files
00_README.txt
Files
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