Abstract
The locations are discussed where periodic variations in the solar-wind density are formed taking into account the observed antiphase variations in the proton and alpha-particle densities (Viall et al., 2009). Taking into consideration that alpha particles move faster than protons, we can state that the observed variations should be formed at distances larger than 0.02 AU from the observation point.
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Original Russian Text © Yu.I. Yermolaev, 2014, published in Geomagnetizm i Aeronomiya, 2014, Vol. 54, No. 2, pp. 174–175.
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Yermolaev, Y.I. Where are medium-scale solar-wind variations formed?. Geomagn. Aeron. 54, 162–163 (2014). https://doi.org/10.1134/S0016793214020091
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DOI: https://doi.org/10.1134/S0016793214020091