48 citations · 227 across the 29 of their papers we have counts for
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Magnetic field dependence of bipolar magnetic region tilts on the Sun: Indication of tilt quenching
Bibhuti Kumar Jha, Bidya Binay Karak, Sudip Mandal +1
The tilt of bipolar magnetic region (BMR) is crucial in the Babcock--Leighton process for the generation of the poloidal magnetic field in Sun. Based on the thin flux tube model of…
Delving into the Historical Ca II K Archive from the Kodaikanal Observatory: the Potential of the Most Recent Digitised Series
Theodosios Chatzistergos, Ilaria Ermolli, Sami K. Solanki +4
Full-disc Ca II K photographic observations of the Sun carry direct information about the evolution of solar-plage regions for more than a century and are therefore a unique datase…
Study of Sunspot Penumbra to Umbra Area Ratio using Kodaikanal White-light Digitized Data
Bibhuti Kumar Jha, Sudip Mandal, Dipankar Banerjee
We study the long-term behaviour of sunspot penumbra to umbra area ratio by analyzing the recently digitized Kodaikanal white-light data (1923-2011). We implement an automatic umbr…