NMFwisp: wisp artifact subtraction from JWST/NIRCam images

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Authors: Zihao Wu, Ben Johnson, Daniel Eisenstein, JADES Collaboration
Cited by: 1

Abstract

Wisps are scattered-light artifacts that affect JWST/NIRCam short-wavelength images. Because their morphology can vary between observations, subtraction based on a single template can leave significant residual artifacts. This package subtracts wisps using multi-component templates optimized from extensive JWST Advanced Deep Extragalactic Survey (JADES) data with non-negative matrix factorization (NMF). This method captures wisp morphological variations effectively, producing cleaner subtraction and lower residuals than the standard STScI method.

Publication details

Journal / source
Zenodo (CERN European Organization for Nuclear Research)
Publication date
8 June 2026