activity
20172022
most citedSunspot area catalogue revisited: Daily cross-calibrated areas since 1874

85 citations · 275 across the 9 of their papers we have counts for

collaborators

10 papers

astro-ph.SR202130 cited

Flare induced decay-less transverse oscillations in solar coronal loops

Sudip Mandal, Hui Tian, Hardi Peter

Evidence of flare induced, large-amplitude, decay-less transverse oscillations is presented. A system of multi-thermal coronal loops as observed with the Atmospheric Imaging Assemb…

astro-ph.SR2021

On the size distribution of spots within sunspot groups

Sudip Mandal, Natalie A. Krivova, Robert Cameron +1

Size distribution of sunspots provides key information about the generation and emergence processes of the solar magnetic field. Previous studies on the size distribution have prim…

astro-ph.SR202131 cited

Measurements of Solar Differential Rotation Using the Century Long Kodaikanal Sunspot Data

Bibhuti Kumar Jha, Aditya Priyadarshi, Sudip Mandal +2

The rotational profile of the Sun is considered to be one of the key inputs in a solar dynamo model. Hence, precise and long-term measurements of this quantity is important for our…

astro-ph.SR202085 cited

Sunspot area catalogue revisited: Daily cross-calibrated areas since 1874

Sudip Mandal, Natalie A. Krivova, Sami K. Solanki +2

Long and consistent sunspot area records are important for understanding the long-term solar activity and variability. Multiple observatories around the globe have regularly record…

astro-ph.SR201915 cited

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…

astro-ph.SR201917 cited

Can the long-term hemispheric asymmetry of solar activity result from fluctuations in dynamo parameters?

Alexander Nepomnyashchikh, Sudip Mandal, Dipankar Banerjee +1

The hemispheric asymmetry of sunspot activity observed possesses a regular component varying on a time scale of several solar cycles whose origin and properties are currently debat…