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Simulations of the STIS CCD clear imaging mode PSFDetailed understanding of the properties of the point-spread function (PSF) of Space Telescope Imaging Spectrograph (STIS) imaging modes is necessary to separate real effects of geometrically complex astronomical sources, such as protoplanetary disks surrounding bright stars, from instrumental effects, such as scattering and diffraction. In order to investigate STIS imaging properties we have numerically simulated broadband stellar PSFs generated by STIS in CCD clear imaging mode, including the effects of the Lyot stop and the coronagraphic wedges. The input spectrum is a stellar model atmosphere of the appropriate spectral type, convolved with the pre-flight STIS CCD response function. The PSF modeler generates broadband PSFs by co-adding weighted monochromatic PSFs across the waveband.
Document ID
19980202038
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Cornett, R. H.
(Hughes STX, Inc. Lanham, MD United States)
Grusczak, A.
(Hughes Danbury Optical Systems, Inc. CT United States)
Ftaclas, C.
(Michigan Technological Univ. Houghton, MI United States)
Heap, S. R.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Woodgate, B. E.
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 18, 2013
Publication Date
January 1, 1997
Publication Information
Publication: The 1997 HST Calibration Workshop with a New Generation of Instruments
Subject Category
Astronomy
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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