8 papers
Backtracking Bipolar Magnetic Regions to their emergence: Two groups and their implication in the tilt measurements
Anu Sreedevi, Bidya Binay Karak, Bibhuti Kumar Jha +2
Bipolar Magnetic Regions (BMRs) that appear on the solar photosphere are surface manifestations of the Suns internal magnetic field. With modern observations and continuous data st…
Machine Learning Based Identification of Solar Disk and Plages in Kodaikanal Solar Observatory Historical Suncharts
Dibya Kirti Mishra, Subhamoy Chatterjee, Bibhuti Kumar Jha +6
Kodaikanal Solar Observatory (KoSO) is one of the oldest solar observatories, possessing an archive of multi-wavelength solar observations, including white light, Ca II K, and H-al…
Observed Joys law of Bipolar Magnetic Region tilts at the emergence supports the thin flux tube model
Anu Sreedevi, Bidya Binay Karak, Bibhuti Kumar Jha +2
Bipolar sunspots, or more generally, Bipolar Magnetic Regions, BMRs, are the dynamic magnetic regions that appear on the solar surface and are central to solar activity. One striki…
Properties of slow magneto-acoustic waves observed simultaneously using Hi-C 2.1 and AIA
Suraj K. Tripathy, S. Krishna Prasad, D. Banerjee
Propagating slow magneto-acoustic waves are commonly observed in different coronal structures but are most prominent in active region fan loops. Their rapid damping with damping le…
Estimation of Polar Magnetic Fields using Ca II K Polar Network as a Proxy
Dibya Kirti Mishra, Bibhuti Kumar Jha, Theodosios Chatzistergos +3
The polar magnetic field plays a crucial role in the solar dynamo model and contributes to predicting future solar cycles. However, continuous and direct measurements of this polar…
Ca II K Polar Network Index of the Sun: A Proxy for Historical Polar Magnetic Field
Dibya Kirti Mishra, Bibhuti Kumar Jha, Theodosios Chatzistergos +4
The Sun's polar magnetic field is pivotal in understanding solar dynamo processes and forecasting future solar cycles. However, direct measurements of the polar field is only avail…