Extended Data Fig. 4: Normalized root-mean-square error as a function of bin size for all spectroscopic channels.
From: Early Release Science of the exoplanet WASP-39b with JWST NIRCam
The red line shows the expected relationship for perfect Gaussian white noise. The black lines show the observed noise from each spectroscopic channel for the Eureka! long-wavelength reduction. Values for all channels are normalized by dividing by the value for a bin size of 1 in order to compare bins with different noise levels. The black lines closely follow the red line out to large bin sizes of ≈30 (≈0.5-h timescales), which demonstrates that the residuals to the fit are dominated by white Gaussian noise.