New insights on the behaviour of solar wind protons and alphas in the Stream Interaction Region in solar cycle 23 and 24

Yogesh, D. Chakrabarty, Nandita Srivastava

Although the enhancements in the alpha-proton ratio in the solar wind (expressed as $A_{He}=N_a/N_p\ast 100$) in the Interplanetary Coronal Mass Ejections (ICMEs) have been studied i…