Proposal 11923-UVIS Filter Wedge Check

Details Proposal 11923-UVIS Filter Wedge Check Proposal 11923-UVIS Filter Wedge Check

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012wfc..rept....1s&link_type=abstract

Instrument Science Report WFC3 2012-001, 15 pages

Astronomy and Astrophysics

Astronomy

Hubble Telescope, Hst, Wfc3, Wide Field Camera 3, Stsci

Scientific paper

Variations in the thickness of a filter modify the distribution of the light beam, causing an apparent displacement of the observed sources. Proposal 11923 was designed to check the coplanarity (wedge) of the WFC3/UVIS spectral elements and evaluate the impact on the astrometry. We have measured the displacement of stellar positions in the 42 full-frame imaging filters.

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