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Subsurface Flows in Active Regions with Peculiar Magnetic Configurations

Published online by Cambridge University Press:  23 December 2024

Kiran Jain Open the ORCID record for Kiran Jain [Opens in a new window]  and
Sushanta C. Tripathy
Kiran Jain*
Affiliation:
National Solar Observatory, 3665 Discovery Dr., Boulder, CO 80303, USA
Sushanta C. Tripathy
Affiliation:
National Solar Observatory, 3665 Discovery Dr., Boulder, CO 80303, USA
*
email: [email protected]
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Abstract

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We present analysis of the evolution of subsurface flows in and around active regions with peculiar magnetic configurations and compare their characteristics with the normal active regions. We also study the zonal and meridional components of subsurface flows separately in different polarity regions separately to better understand their role in flux migration. We use the techniques of local correlation tracking and ring diagrams for computing surface and subsurface flows, respectively. Our study manifests an evidence that the meridional component of the flows near anti-Hale active regions is predominantly equatorward which disagrees with the poleward flow pattern seen in pro-Hale active regions. We also find clockwise or anti-clockwise flows surrounding the anti-Joy active regions depending on their locations in the Southern or Northern hemispheres, respectively.

Keywords

Solar physicsHelioseismologySolar interiorSolar oscillationsSolar activitySolar convection zoneSolar active region velocity fieldsSolar rotationSolar meridional circulation
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. 296 - 302
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Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of International Astronomical Union

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