Research

Abstract:-

Coronal Mass Ejection (CME) is most violent solar eruption phenomena, which most likely the reason behind geomagnetic storms. We have studied CME morphology using the Cone model and used this model to find important CME parameters like half angular width, location on the solar surface, and radial distance. We have created a python-based code, which allows us to find mentioned CME parameters from SOHO/LASCO observation using the Cone model. We have studied CME morphology using multiple viewpoints and tried to reconstruct a 3D flux rope structure based on Graduated Cylindrical Shell model. Also, we have studied CME propagation in the heliosphere using Drag Based Model(DBM), which is the simplest model for CME propagation. We have developed a web-based tool of Drag based model to forecast CME arrival on Earth. In the context of CME propagation, we also did a numerical simulation using widely used MHD code PLUTO. We have applied these CME morphology models and CME propagation model in combination (Cone Model+ DBM), (GCS+ DBM) and (Cone Model+ PLUTO) to three different Halo CME events to determine CME parameters and CME arrival time on the Earth, which compared with different catalogues and database. (PDF)