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Chromosphere activity: relations with Solar cycles (SC)

Published online by Cambridge University Press:  23 December 2024

S. Koutchmy  and
E. Tavabi Open the ORCID record for E. Tavabi [Opens in a new window]
S. Koutchmy
Affiliation:
Institut d’Astrophysique de Paris, Sorbonne Universités, UMR 7095, CNRS and UPMC, 75014 Paris, France
E. Tavabi*
Affiliation:
Physics Department, Payame Noor University, Tehran, Iran, 19395-3697
*
email: [email protected]
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Abstract

The study’s focus on the modulation of geomagnetism by low latitude solar magnetically activity, including coronal mass ejections (CMEs), solar flares, and solar energetic particles (SEPs). It mentions the Babcock–Leighton (B-L) dynamo model used to predict sunspot numbers in Solar Cycle 25 (SC25) and highlights the challenges in understanding aspects such as the regeneration of the poloidal field and the occurrence of magnetic regions, active longitudes, and coronal holes. The abstract introduces the study’s concentration on the activity of polar regions using chromosphere jets activity proxies and other parameters like polar faculae density and cool ejection events. It also mentions the observation of chromospheric prolateness during the minimum solar activity periods.

Keywords

chromospheresolar cycleactivitysunspot
Type
Contributed Paper
Information
Proceedings of the International Astronomical Union , Volume 19 , Symposium S365: Dynamics of Solar and Stellar Convection Zones and Atmospheres , December 2023 , pp. 163 - 166
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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References

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