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arXiv · 2011.02123

Analysis of the Coronal Mass Ejections through Axial Field Direction of Solar Filaments and IMF Bz

Kashvi Mundra·V. Aparna·Petrus C. H. Martens
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Abstract

In the past, there have been many studies claiming that the effects of geomagnetic storms strongly depends on the orientation of the magnetic-cloud part of the Coronal Mass Ejections (CMEs). Aparna & Martens (2020), using Halo-CME data from 2007-2017, have shown that the magnetic field orientation of filaments at the location where CMEs originate can be effectively used for predicting the onset of geo-magnetic storms. The purpose of this study is to extend their survey by analyzing the halo-CME data for 1996-2006. The correlation of filament axial direction and their corresponding Bz signatures are used to form a more extensive reasoning for the claims presented by Aparna & Martens before. This study utilizes SOHO EIT 195 Å, MDI magnetogram images, KSO and BBSO H$α$ images for the time period, along with ACE data for inter-planetary magnetic field signatures. Correlating all these, we have found that the trend in Aparna & Martens' study of a high likelihood of the correlation between the axial field direction and Bz orientation, persists for the data between 1996-2006 as well.

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Kashvi Mundra, V. Aparna, Petrus C. H. Martens. 2020-11-04. Analysis of the Coronal Mass Ejections through Axial Field Direction of Solar Filaments and IMF Bz. https://doi.org/10.3847/1538-4365%2Fac3136

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