Solar scintillation and the monitoring of solar seeing |
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| Authors: | E J Seykora |
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| Institution: | (1) Phillips Laboratory (AFMC), Geophysics Directorate, National Solar Observatory/Sacramento Peak, National Optical Astronomy Observatories, 88349 Sunspot, NM, USA;(2) Present address: Department of Physics, East Carolina University, 27858 Greenville, NC, USA |
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| Abstract: | A non-telescopic method of determining the quality of atmospheric seeing is discussed for large angular diameter objects, such as the Sun. In this method the concept of thermodynamic fluctuations is used to relate the observed intensity fluctuations to the r.m.s. angular diameter of the atmospheric seeing cells and telescopic angle of arrival fluctuations. Comparison between the measured r.m.s. cell size and telescopic angle of arrival fluctuations are presented for various degrees of seeing. Cross-correlation coefficients of 0.95 have been measured during such comparisons.Operated by the Association of Universities for Research in Astronomy, Inc. (AURA), under cooperative agreement with the National Science Foundation. Partial support for NSO is provided by USAF under a Memorandum of Understanding with the NSF. |
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