JWST Noise Floor. I. Random Error Sources in JWST NIRCam Time Series

• Published in: The Astronomical journal Vol. 160; no. 5; pp. 231 - 249
• Main Authors: Schlawin, Everett, Leisenring, Jarron, Misselt, Karl, Greene, Thomas P., McElwain, Michael W., Beatty, Thomas, Rieke, Marcia
• Format: Journal Article
• Language: English
• Published: Goddard Space Flight Center The American Astronomical Society 01.11.2020; IOP Publishing
• Subjects: Astronomical detectors; Astronomical techniques; Astronomy; ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; Atomic spectroscopy; COMPARATIVE EVALUATIONS; Covariance; DARK CURRENT; Data integration; DISPERSIONS; EMISSION SPECTRA; Exoplanet atmospheres; EXTRACTION; Extrasolar planets; Frames (data processing); Infrared cameras; James Webb Space Telescope; Noise; Noise reduction; Offsets; Photometry; Pixels; PLANETARY ATMOSPHERES; PLANETS; Random errors; Random noise; READOUT SYSTEMS; SPACE; Space telescopes; Spectroscopy; STARS; Subtraction; Systematic errors; TELESCOPES; Time series; Transit; TRANSMISSION; Transmission spectroscopy; Astronomical Detectors; Atomic Spectroscopy; Spectroscopy; Exoplanet Atmospheres; Transmission Spectroscopy; Astronomical Techniques; Photometry

James Webb Space Telescope (JWST) transmission and emission spectra will provide invaluable glimpses of transiting exoplanet atmospheres, including possible biosignatures. This promising science from JWST, however, will require exquisite precision and understanding of systematic errors that can impa...