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A Fabry-Perot interferometer for accurate measurement of temporal changes in stellar Doppler shiftThe scrambling of incident light by an optical filter, and the stability obtainable through wavelength calibration by means of a tilt-tunable Fabry-Perot etalon, allow the accurate observation of Doppler shift changes in stellar absorption lines. Distinct, widely spaced monochromatic images of the entrance aperture are formed in the focal plane of the camera through a sampling of about 350 points on the profile of the stellar spectrum by successive orders of interferometric transmission through the etalon. Changes in Doppler shift modify the relative intensities of these images, in proportion to the slope of the spectral profile at each point sampled.
Document ID
19870049103
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mcmillan, R. S.
(Arizona Univ. Tucson, AZ, United States)
Smith, P. H.
(Arizona Univ. Tucson, AZ, United States)
Frecker, J. E.
(Arizona Univ. Tucson, AZ, United States)
Merline, W. J.
(Arizona Univ. Tucson, AZ, United States)
Perry, M. L.
(Arizona, University Tucson, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Subject Category
Instrumentation And Photography
Accession Number
87A36377
Funding Number(s)
CONTRACT_GRANT: NAG2-52
CONTRACT_GRANT: NASW-3454
CONTRACT_GRANT: NSF AST-84-03285
Distribution Limits
Public
Copyright
Other

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