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Comparison of some Methods of Eliminating the Effect of the Earth’s Atmosphere from the Observed Brightness of Zodiacal Light

  • N. B. Divari
  • N. I. Komarnitskaya
  • S. N. Krylova

Abstract

The proper allowance for tropospheric scattering is very important in reducing observed brightnesses of zodiacal light. This essential question was first raised by V. G. Fesenkov and examined in detail by him in [1–4]. According to Fesenkov’s theory, the relationship between the observed brightness of zodiacal light Japp (free of night airglow and the stellar background) and the extra-atmospheric brightness J is
$$J=K{{J}_{app}}{{P}^{-\sec {{z}_{0}}}}$$
(1)
where p is the transmission coefficient of the earth’s atmosphere. The factor K takes into account tropospheric scattering of zodiacal light and is determined by the formula
$$K={{\left( 1+\frac{B\left( {{z}_{0}},{{A}_{0}} \right)}{J\left( {{z}_{0}},{{A}_{0}} \right){{P}^{\sec {{z}_{0}}}}} \right)}^{-1}}$$
(2)
where B(z0, A0) is the tropospheric component of the brightness of zodiacal light (i.e., the intensity of zodiacal light scattered by the troposphere) at a point with zenith distance z0 and azimuth A0. It is obvious that
$${{J}_{app}}=J\left( {{z}_{0}},{{A}_{0}} \right){{P}^{\sec {{z}_{0}}}}+B\left( {{z}_{0}},{{A}_{0}} \right)$$
(3)
.

Keywords

Transmission Coefficient Approximation Formula Interference Filter Absolute Unit Zenith Distance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature Cited

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    V. G. Fesenkov, Astron. zh., Vol. 35, p. 323 (1958).ADSGoogle Scholar
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Copyright information

© Consultants Bureau, New York 1970

Authors and Affiliations

  • N. B. Divari
  • N. I. Komarnitskaya
  • S. N. Krylova

There are no affiliations available

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