3 papers
astro-ph.SR2020
Intercycle and intracycle variation of halo CME rate obtained from SOHO/LASCO observations
Fithanegest Kassa Dagnew, Nat Gopalswamy, Solomon Belay Tessema +3
We report on the properties of halo coronal mass ejections (HCMEs) in solar cycles 23 and 24. We compare the HCMEs properties between the corresponding phases (rise, maximum, and d…
astro-ph.SR2020
A comparison of CME expansion speeds between solar cycles 23 and 24
Fithanegest Kassa Dagnew, Nat Gopalswamy, Solomon Belay Tessema
We report on a comparison of the expansion speeds of limb coronal mass ejections (CMEs) between solar cycles 23 and 24. We selected a large number of limb CME events associated wit…
astro-ph.SR2020
The shock driving capability of a CME inferred from multiwavelength observations
Fithanegest Kassa Dagnew, Nat Gopalswamy, Solomon Belay Tessema +4
The radial speed of a coronal mass ejection (CME) determines the shock-driving capability of a CME as indicated by the presence of a type II radio burst. Here we report on the Apri…