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A deconvolution technique for Hubble Space Telescope FGS fringe analysisA technique has been developed for directly transforming interferometer fringe visibility functions ('S curves') from the Hubble Space Telescope (HST) fine guidance sensors (FGSs) into intensity profiles of the program object. In a process analogous to Fourier transform image deconvolution, an S curve from a double star yields a pair of narrow profiles containing information on the separation (in one coordinate), and relative brightness of the two stars. The procedure has yielded high internal precision for the separation and relative brightness in tests with HST data. Simulations indicate that it can also deconvolve S curves from multiple stars or continuous intensity distributions such as resolvable stellar or extragalactic objects. Similar deconvolution analyses may be useful in other types of interferometry.
Document ID
19920067039
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hershey, John L.
(Space Telescope Science Institute Baltimore, MD, United States)
Date Acquired
August 15, 2013
Publication Date
July 1, 1992
Publication Information
Publication: Astronomical Society of the Pacific, Publications
Volume: 104
Issue: 677
ISSN: 0004-6280
Subject Category
Astronomy
Accession Number
92A49663
Funding Number(s)
CONTRACT_GRANT: NAS5-26555
Distribution Limits
Public
Copyright
Other

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