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Study of solar flares associated with Geoeffective CMEs

Published online by Cambridge University Press:  27 November 2018

Veena Choithani ,
Rajmal Jain  and
Duggirala Pallamraju
Veena Choithani
Affiliation:
Dept. of Physics, Sh. M. M. Patel Institute of Sciences & Research, Kadi Sarva Vishwavidyalaya P.O., Gandhinagar 382015, India email: [email protected]
Rajmal Jain
Affiliation:
Dept. of Physics, Sh. M. M. Patel Institute of Sciences & Research, Kadi Sarva Vishwavidyalaya P.O., Gandhinagar 382015, India email: [email protected]
Duggirala Pallamraju
Affiliation:
Physical Research Laboratory P.O., Navrangpura 380009, India email: [email protected]
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Abstract

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We study 30 solar flare events associated with coronal mass ejections (CMEs) that produced geomagnetic storms as measured in Dst index. Our study reveals that the magnitude of Dst index is significantly associated with maximum solar wind speed, peak of Bz component of the IMF and the product of peak Bz and solar wind speed (minimum and maximum). From our investigations, it can be inferred that CMEs travel with higher speed in the beginning and their speed reduces as they reach L1 location.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 13 , Symposium S340: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles , February 2018 , pp. 163 - 164
Copyright
Copyright © International Astronomical Union 2018 

References

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