@article{d1e09c851ab347509a2ad143c921ad1f,
title = "Dynamic Wisp Removal in JWST NIRCam Images",
abstract = "The James Webb Space Telescope (JWST) near-infrared camera has been found to exhibit serious wisp-like structures in four of its eight short-wavelength detectors. The exact structure and strength of these wisps is highly variable with the position and orientation of JWST, so the use of static templates is non-optimal. Here we investigate a dynamic strategy to mitigate these wisps using long-wavelength reference images. Based on a suite of experiments where we embed a worst-case scenario median-stacked wisp into wisp-free images, we define suitable parameters for our wisp removal strategy. Using this setup we re-process wisp-affected public Prime Extragalactic Areas for Reionization and Lensing Science data in the North Ecliptic Pole Time Domain Field, resulting in significant visual improvement in our detector frames and reduced noise in the final stacked images.",
keywords = "Astronomical instrumentation, Astronomical techniques",
author = "Robotham, \{A. S.G.\} and D{\textquoteright}Silva, \{J. C.J.\} and Windhorst, \{R. A.\} and Jansen, \{R. A.\} and J. Summers and Driver, \{S. P.\} and Wilmer, \{C. N.A.\} and S. Bellstedt",
note = "Funding Information: A.S.G.R. acknowledges funding by the Australian Research Council (ARC) Future Fellowship scheme (FT200100374, “Hot Fuzz”). R.A.W. and R.A.J. acknowledge support from NASA grants NAG5-12460, NNX14AN10G and 80NSSC18K0200 from GSFC. S.P.D. acknowledges funding by the Australian Research Council (ARC) Laureate Fellowship scheme (FL220100191). C.N.A.W. acknowledges support from the NIRCam Development Contract NAS5-02105 from NASA Goddard Space Flight Center to the University of Arizona. We thank Prof. John Peacock for a useful suggestion to consider the bluest low-SB features that may be a real astrophysical source. We thank the anonymous referee for providing constructive comments that improved aspects of the core algorithm and the comprehensibility of the paper. Publisher Copyright: {\textcopyright} 2023. The Astronomical Society of the Pacific. All rights reserved.",
year = "2023",
month = aug,
day = "1",
doi = "10.1088/1538-3873/acea42",
language = "English (US)",
volume = "135",
journal = "Publications of the Astronomical Society of the Pacific",
issn = "0004-6280",
publisher = "University of Chicago",
number = "1050",
}