OtherOpen Access
The SPHEREx Photometry and Image Fitting Framework (SPIFF) Spectrophotometry Library
Authors
Author Affiliations
Espace pour la vie, American Museum of Natural History, The Open University, United States Naval Observatory, ...
Published InZenodo (CERN European Organization for Nuclear Research)
Year2026
Abstract
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.
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