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Observation of Dust Generated Hydrogen in the Solar Vicinity

Published online by Cambridge University Press:  14 August 2015

H. J. Fahr ,
H. W. Ripken  and
G. Lay
H. J. Fahr
Affiliation:
Institut für Astrophysik und Extraterrestrische Forschung Universität Bonn Auf dem Hügel 71, 5300 Bonn 1, Fed. Rep. Germany
H. W. Ripken
Affiliation:
Institut für Astrophysik und Extraterrestrische Forschung Universität Bonn Auf dem Hügel 71, 5300 Bonn 1, Fed. Rep. Germany
G. Lay
Affiliation:
Institut für Astrophysik und Extraterrestrische Forschung Universität Bonn Auf dem Hügel 71, 5300 Bonn 1, Fed. Rep. Germany

Abstract

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Solar wind protons impinging on interplanetary dust grains are trapped, deionized, and subsequently desorbed. The steady state distribution of desorbed neutral hydrogen inside of 0.4 AU can be deduced by observation of resonantly scattered solar 121.6 nm radiation. Calculated integral intensities and spectral profiles are given, showing the clear spectral separation of the different radiation components. Given a specific solar wind proton flux, the interplanetary dust distribution can be determined. Conversely, dust density profiles from zodiacal light measurements can be used to deduce solar wind proton fluxes at heliocentric distances of 0.4 to 0.15 AU. Observations of latitudinal and short-term temporal proton flux variations seem feasible.

Type
Part II. Coronal and Interplanetary Responses to Long Time Scale Phenomena
Information
Symposium - International Astronomical Union , Volume 91: Solar and Interplanetary Dynamics , 1980 , pp. 155 - 158
Copyright
Copyright © Reidel 1980 

References

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