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- Title
Automatic Algorithm for Tracking Bipolar Magnetic Regions.
- Authors
Sreedevi, Anu B.; Jha, Bibhuti Kumar
- Abstract
Properties of bipolar magnetic regions (BMRs), particularly, the tilt angle play critical roles in generating the observed polar magnetic field and its reversal. Hence, a long-term study of BMR over its lifetime is crucial not only to understand the solar dynamo but also to identify the origin of the properties of BMR. In our work, we have developed an automatic algorithm to detect and track the BMRs from the line-of-sight (LOS) magnetograms of Michelson Doppler Imager (MDI) for the period of Solar Cycle 23 over its lifetime/disk passage. Here, we present the details of our algorithm and the features of BMR, particularly the tilt angle, magnetic field strength and lifetime.
- Subjects
COMPUTER algorithms; SOLAR photosphere; SUNSPOTS; MAGNETIC fields; SOLAR system
- Publication
Proceedings of the International Astronomical Union, 2023, Vol 18, Issue S372, p97
- ISSN
1743-9213
- Publication type
Article
- DOI
10.1017/S1743921322004975