NMFwisp: wisp artifact subtraction from JWST/NIRCam images
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