Astronomical monochromatic imaging as applied to the Io sodium cloud

Applied Optics

Volumn 17, Issue 19, 1978, Pages 3117-3124

  Murcray, Frank J ^a,b   Goody, Richard ^a  

^a HARVARD UNIVERSITY   (United States)

^b UNIVERSITY OF DENVER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

INTERFEROMETERS; SODIUM; ASTRONOMY - INSTRUMENTS;

ASTRONOMICAL IMAGES; MONOCHROMATIC IMAGING; MONOCHROMATIC SIGNALS; NOISE LEVELS; PHOTON STATISTICS;

SPECTROGRAPHS; OPTICAL INSTRUMENTS;

EID: 0018026802     PISSN: 1559128X     EISSN: 21553165     Source Type: Journal    
DOI: 10.1364/AO.17.003117     Document Type: Article

References (15)

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5. Telescope defects and plate scale vary between telescopes. When we wish to be specific, we refer to the 1.55-m Agassiz telescope of Harvard College Observatory, with the Cassegrain focus (f/20) changed by a lens to f/9.6 and a plate scale of 13 sec of arc/mm
6. D. L. Matson, B. A. Goldberg, T. V. Johnson, and R. W. Carlson, "Images of Io's Sodium Cloud," submitted to Science (1978)
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9. F. J. Murcray and R. M. Goody, "Pictures of the Io Sodium Cloud," submitted to Astrophys. J. (1978)
10. A. M. Title, Appl. Opt. 15, 2871 (1976)
11. H. K. Palmer, Lick Obs. Bull. 2, 46 (1902)
12. Units for D arc sec of arcA, and it depends upon both on the telescope and the spectrograph. D', measured in mmA, depends only on the spectrograph design. If p is the telescope plate scale in sec of arc/mm, then D = pD'
13. O. C. Wilson, G. Munch, E. M. Glather, and M. F. Coffeen, Astrophys. J. Suppl. Ser. 4, 199 (1959)
14. It is only partly coincidence that the dispersion is close to the limit given by Eq. (6). The optimum design of a spectrograph for stellar observations matches seeing (1-2 sec of arc) and limiting spectral resolution (-0.05 A). The coincidence arises because the Na D-lines have widths close to the limiting resolution
15. L. Mertz, Appl. Opt. 16, 812 (1977)