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Time Variation of the Solar Dust Cloud

Published online by Cambridge University Press:  27 February 2018

H. Kimura
H. Kimura*
Affiliation:
The Graduate School of Science and Technology, Kobe University, Nada 657, Kobe, Japan

Abstract

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We have found from line-of-sight integration of scattered light and thermal emission that the appearance of a hump in the F-corona, which was observed in the near-infrared wavelengths by Peterson (1969) and MacQueen (1968), is very sensitive to the change of size distribution of circumsolar dust grains. Namely, the size distribution affects the balance of scattered sunlight and thermal emission. We suggest that a temporal variation in the size distribution of circumsolar dust grains is a potential origin of the temporal variation of the hump structure observed in the F-corona.

Type
IX. Zodiacal Light and Thermal Emission
Information
International Astronomical Union Colloquium , Volume 150: Physics, Chemistry and Dynamics of Interplanetary Dust , 1996 , pp. 353 - 356
Copyright
Copyright © Astronomical Society of the Pacific 1996

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