Cross-Talk in the ACS WFC Detectors. I: Description of the Effect

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Hubble Space Telescope, Hst, Space Telescope Science Institute, Advanced Camera For Surveys, Acs, Wide Field Channel, Wfc, Cross Talk

Scientific paper

Images acquired with the Wide Field Channel (WFC) of the Advanced Camera for Surveys (ACS) are affected by cross talk between the four CCD quadrants that correspond to the four amplifiers of the detector array. The effect is observed as (mostly) negative ghost images generated by relatively bright sources located in adjacent quadrants. Their position in the quadrant is mirror-symmetric relative to the positions of the generating sources. The strength of the cross talk is small, i.e. the ghost images have apparent surface brightness of only a few electrons per pixel, and it appears to be mostly a cosmetic problem, with little measurable effects on the photometry of affected sources. Here we describe the phenomenology of the cross talk, and in a companion ISR (Giavalisco 2004) we suggest an observing strategy to minimize its effects on the images.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Cross-Talk in the ACS WFC Detectors. I: Description of the Effect 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 Cross-Talk in the ACS WFC Detectors. I: Description of the Effect, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cross-Talk in the ACS WFC Detectors. I: Description of the Effect will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1856777

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.