The Solar Ionization Rate of the Interplanetary Hydrogen as a Function of a Heliomagnetic Latitude: A New Model for the Interplanetary Lyman Alpha Studies

Author: Summanen T.

Source: Astrophysics and Space Science, Volume 274, Numbers 1-2, 2000 , pp. 143-148(6)

Publisher: Springer

Abstract:

In this work we have modelled the solar wind proton flux which varies as a function of distance to the heliomagnetic equator and its effects on the interplanetary Lyman radiation. The results imply that a groove observed in Lyman intensity patterns toward the upwind direction Bertaux et al. disappears when the tilt angle of the heliomagnetic equator is larger than 20^°. The observations by Bertaux et al. were measured during the solar wind minimum when the tilt angle of the streamer belt is low. During the solar wind maximum when the tilt angle of the streamer belt is large the Lyman groove should disappear according to our results.

Language: English

Document Type: Regular paper

Affiliations: 1: Finnish Meteorological Institute, P.O. Box 503, 00101 Helsinki, Finland

Publication date: 2000-01-01

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