Recent Talks

Recent Publication

• Manuscript Submitted/Accepted:

• S. Wavhal, P. Kumar, D. Mishra, & B. B. Karak: Analyses of features of magnetic cycles at different amounts of dynamo supercriticality: Solar dynamo is about two times critical, Sol. Phys., in press (2025).

• V. Vashishth & B. B. Karak: The role of meridional flow in the generation of solar/stellar magnetic fields and cycles, ApJ, 974, 6 (2024)  (Impact Factor: 4.9).

• A. Sreedevi, B. K. Jha, B. B. Karak & D. Banerjee: Analysis of BMR tilt from AutoTAB catalog: Hinting towards the thin flux tube model?, ApJ, 966, 112 (2024)  (Impact Factor: 4.9).

• A. Ghosh, P. Kumar, A. Prasad, & B. B. Karak: Characterizing the solar cycle variability using nonlinear time series analysis at different amounts of dynamo supercriticality: Solar dynamo is not highly supercritical,  Astronomical Journal, 167, 209 (2024)  (Impact Factor: 5.3).

• P. Kumar, B. B. Karak & A. Sreedevi: Variabilities in the polar field and solar cycle due to irregular properties of Bipolar Magnetic Regions, Under review in MNRAS, 530, 2895-2905 (2024)  (Impact Factor: 5.36).

• A. Biswas, B.B. Karak, & P. Kumar, Exploring the reliability of polar field rise rate as a precursor for an early prediction of solar cycle, MNRAS, 526, 3, 3994–4003 (2023). https://ui.adsabs.harvard.edu/abs/2023MNRAS.tmp.2836B/abstract (Impact Factor: 5.36)

• A. Sreedevi, B. Jha, B.B. Karak, & D. Banerjee, AutoTAB: Automatic Tracking Algorithm for Bipolar Magnetic Regions, APJS 268, 2, 58 (2023). https://ui.adsabs.harvard.edu/abs/2023ApJS..268...58S/abstract (Impact Factor: 8.7)

• P. Kumar, A. Biswas, A. & B. B. Karak: Physical link of the polar field buildup with the Waldmeier effect broadens the scope of early solar cycle prediction: Cycle 25 is likely to be slightly stronger than Cycle 2 Monthly Notices of the Royal Astronomical Society: Letters 513 (1), L112-L116.

Recent Invited Talks

• The origin of solar and stellar magnetic fields and cycles}, 38th National Symposium on Plasma Science \& Technology (PLASMA 2023), UPES Dehradun, India; Dec 4--8, 2023.

• Solar Dynamo: Current status and future prospects, Beyond Aditya-L1: Exploring the future of Indian solar physics from space, ARIES, Nainital, Nov 7--9, 2023.

• Recent Developments in the Babcock–Leighton Solar Dynamo Theory}, IAU 365, Armenia, Yerevan, Aug 21--25, 2023.

• Solar magnetic field and cycle: from understanding to making prediction}, 18th SCOSTEP Capacity Building Online Seminar, July 24, 2023.

• Solar and Stellar Magnetic Fields}, Sikkim University, June 16, 2023.

• Understanding and Modelling the Magnetic Cycles of Sun and Sun-like stars

• Recent Developments in the Babcock-Leighton Dynamo Theory for the Solar Cycle}, FM5, IAU General Assembly, Busan South Korea, Aug 2--11, 2022.

• Models for long-term cycle variabilities, Solar & stellar dynamos: a new era, International Space Science Institute, Bern, Switzerland, Jun 13--16, 2022.

• Understanding the nonlinearity and predictability of the solar dynamo}, ARIES Colloquium (online).

• "Some Recent Developments in the Babcock–Leighton Solar Dynamo Theory", in dynamo & solar cycle RSWG meeting, Max Plank Institute of Solar System Research, Germany, Feb 2022