Articles | Volume 12, issue 12
https://doi.org/10.1007/s00585-994-1192-z
https://doi.org/10.1007/s00585-994-1192-z
31 Dec 1994
31 Dec 1994

Note on the dependence of Pc3-4 activity on the solar wind velocity

A. V. Guglielmi and A. S. Potapov

Abstract. Various models that describe the dependence of pulsation amplitude A on the solar wind velocity V are discussed. Phenomenological considerations and experimental data count in favour of a model of the form A/A0=(V/V0) exp (-V0/V). The linear model A=a+bV which is common in the literature gives negative values of amplitude as V->0, which is strange from the physical point of view. The possibility of modifying the linear model by including critical phenomena is discussed.