Coronal Mass Ejections in Solar Cycle 24

JASEM Front Page
In this paper we have presented the properties and recent results on coronal mass ejections(CMEs), obtained from the Solar and Heliospheric Observatory (SOHO) during 2008–2015. In Cycle-24 CMEs expand anomalously due to the reduced ambient pressure. SOHO/LASCO CMEs, were obtained from the LASCO catalogue respectively. Solar wind linear speed and its angular width determine the nature of CMEs.We report on a comparison between space weather events that occurred around the two peaks in the sunspot number (SSN) during solar cycle 24. The two SSN peaks occurred in the years 2012 and 2014. Even though SSN was larger during the second peak, we find that there were more space weather events during the first peak.

Keywords: coronal mass ejections, sunspot number, solar cycle


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