Photometric and Spectrophotometric Absolute Calibration

Details Photometric and Spectrophotometric Absolute Calibration Photometric and Spectrophotometric Absolute Calibration

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006hst..prop11054b&link_type=abstract

HST Proposal ID #11054. Cycle 15

Physics

Scientific paper

Verify repeatability of the ACS instrumentation on a single bright star to ?0.2%. Determine any shift in the filter bandpasses since the preflight lab measurements. Determine the relative magnitude of the 3 primary WD calibrators to 0.1%. Refine the sensitivity calibration of the CCD prism and grisms at field center and determine the repeatability accuracy of this calibration. Determine the level of variability of the three HST red standard stars VB-8 M7, 2M0038+18 L3.5 and 2M0559-14 T5 and also measure their short wavelength <7000A fluxes. Measure the WFC red leak by adding one orbit for WFC observation of the sdF8 SDSS standard BD+17d4708 in order to look for continuity vs. SED from O,F,M,L,T.

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