Abstract
Hale (1908) discovered the existence of magnetic fields in sunspots, and since then a consensus has been reached that magnetic fields play an important role in various forms of solar activities, such as solar flares . Modified Mount-Wilson scheme is one of the methodology to classify active regions based on their complexity . As per this scheme, sunspots are classified as α, β, γ, and δ with the complexity of the magnetic topology increasing from α to δ. The δ sunspots are known to be highly flare-productive. An existing automated algorithm (SMART-DF) is modified and used to identify δ-spots for the existing full disk SOHO/MDI data. The automatically identified δ-spots is compared with the NOAA-SRS database and found to be reproducing almost all the identified δ-spots. In thisstudy, the connection between formation of δ-spot and flares is also carried out using GOES flare flux and NOAA-SRS sunspot classification.
| Original language | English |
|---|---|
| Pages (from-to) | 75-76 |
| Number of pages | 2 |
| Journal | Proceedings of the International Astronomical Union |
| Volume | 13 |
| Issue number | S340 |
| DOIs | |
| Publication status | Published - 2018 |
| Event | 340th Symposium of the International Astronomical Union on Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles - Jaipur, India Duration: 19-02-2018 → 23-02-2018 |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science