Abstract Title: *
On the relationship between filament eruptions and solar energetic 
particles

Authors: *
Ts. Tsvetkov, R. Miteva, N. Petrov

Institution: *
1 Institute of Astronomy and National Astronomical Observatory, BAS

Preferred format: *
poster presentation

Abstract Text: *
Launching the Solar Dynamics Observatory in 2010 marks the beginning of a 
new era in solar observations. Not only the high resolution, but also the 
exceptional cadence of SDO data motivated us to make a statistical study 
about the relationship between solar activity phenomena and fluxes of 
solar energetic particles. We take SOHO/ERNE 17-22 MeV energy channel 
data to identify 186 proton fluxes reaching the Earth between 2010 and 
2016, linking them with solar flares, coronal mass ejections (CMEs), 
filaments and type II bursts and defining the heliographic coordinates of 
their origin. We found that about half of the studied SEP events are 
connected with prominences and about 87% of the proton-related filaments 
originate from active regions. In addition, we identify the association 
rate between filament eruptions (FEs) and in situ protons that is found 
to be rather small. We explored the statistical differences between the 
proton, flare and CME distributions of the proton-related and FE-related 
samples.