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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 4, Iss. 2 — Feb. 1, 1965
  • pp: 215–219

An Automatic Continuum Compensating Photometer for Observations of Aurora and Airglow

I. Filosofo, J. A. Greenspan, and C. M. Groom  »View Author Affiliations


Applied Optics, Vol. 4, Issue 2, pp. 215-219 (1965)
http://dx.doi.org/10.1364/AO.4.000215


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Abstract

An auroral-airglow photometer is described which automatically samples the night sky continuum at a wavelength adjacent to the emission line and subtracts the contribution of the continuum to the total observed signal. The sampling rate of 150 cps permits the subtraction of fluctuations in the continuum. Emission intensities over seven orders of magnitude may be monitored in unattended operation with an over-all response time of 1 sec/decade. Three emission wavelengths are monitored sequentially. The logarithm of the intensity is automatically recorded on a strip chart recorder. Full-scale deflection of the recorder pen corresponds to one decade of light intensity.

© 1965 Optical Society of America

History
Original Manuscript: August 18, 1964
Published: February 1, 1965

Citation
I. Filosofo, J. A. Greenspan, and C. M. Groom, "An Automatic Continuum Compensating Photometer for Observations of Aurora and Airglow," Appl. Opt. 4, 215-219 (1965)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-4-2-215

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