Relationship between solar energetic particle intensities and coronal mass ejection kinematics using STEREO/SECCHI field of view

Solar energetic particles (SEPs) accelerated from shocks driven by coronal mass ejections (CMEs) are one of the major causes geomagnetic storms on Earth. Therefore, it is necessary to predict occurrence and intensity such disturbances. For this purpose we analyzed in detail 38 non-interacting halo partial CMEs, as seen Heliospheric Observatory/Large Angle Spectrometric Coronagraph, generating SEPs (in > 10 MeV, 50 100 MeV energy channels) during quadrature configuration TErrestrial RElations Observatory (STEREO) twin spacecrafts with respect Earth, which marks ascending phase solar cycle 24 (i.e., 2009–2013). The main criteria for selection period obtain height–time measurements CMEs without significant projection effects a very large field view. Using data STEREO/Sun Earth Connection Coronal Investigation (STEREO/SECCHI) images determined several kinematic parameters instantaneous speeds CMEs. First, compare CME speed Mach number versus SEP fluxes events originating at western eastern limb; observe high correlation anticorrelation events. Of two parameters, offers higher correlation. Next investigated maximum speed, number, peak flux fluxes. Highly positive observed all obtained emperical models was verified start end time type II radio bursts, signatures CME-driven shock interplanetary medium. Furthermore, conducted estimates delay distance between CME, SEP, parameters. We an increase when reach onset move limb. Western limb (longitude 60°) have best connectivity decreases towards This variation due magnetic Sun called Parker spiral field. Comparative studies considered channels also throw light reacceleration suprathermal seed ions that pre-accelerated reconnection.