Coronal Mass Ejections Identification in Inner Solar Corona

Scientists from Aryabhatta Research Institute of observational sciences (ARIES) have developed an algorithm, CMEs Identification in Inner Solar Corona (CIISCO) to detect and track CMEs in lower corona.

• Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona. They cause disruption of space weather and satellite failures, and power outages, etc.

Need of the Algorithm

• Computer Aided CME Tracking Software (CACTus) was used to detect and characterise such eruptions automatically in the outer corona.However, this algorithm could not be applied to the inner corona observations due to the vast acceleration experienced by these eruptions.

Advantages of the Algorithm

• The parameters determined by CIISCO are useful to characterise these eruptions in the lower corona, a region where the properties of such eruptions are less known.
• Technology will be used in Aditya-L1 India’s first solar mission which will provide new insight into the CME properties in this less explored solar corona region.