Other
Scientific paper
Jul 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010hstc.worke..26l&link_type=abstract
"2010 Space Telescope Science Institute Calibration Workshop - Hubble after SM4. Preparing JWST, held 21-23 July 2010 at Space T
Other
Scientific paper
As is the case for most if not all modern IR arrays, bright sources observed with the IR detector in WFC3 leave faint residual images in subsequent exposures. This image persistence has been observed not only in dithered exposures by one observer of a single target within an orbit but also and more often in exposures of a different target by another observer in subsequent orbits. The amount of image persistence in the WFC3 IR detector is a function of the degree of photo-generated charge saturation of a pixel and time since the pixel was (over)exposed. The persistence decays roughly as a power law with time, and is typically 0.3 e s-1 for a pixel that was highly saturated 1000 s earlier. Here, we show examples of persistence which have been observed and characterize the effect. We also describe ways for observers to find the pixels that are likely to have been affected by persistence, and to mitigate the effects of persistence when planning observations and reducing their data.
Bagett Sylvia M.
Deustua Susana
Long Knox S.
Riess Adam
No associations
LandOfFree
Persistence in the WFC3 IR Detector does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Persistence in the WFC3 IR Detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Persistence in the WFC3 IR Detector will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-957741