60 citations · 302 across the 19 of their papers we have counts for
3 papers · 1 filter
Supersonic Downflows in a Sunspot Light Bridge
Rohan Eugene Louis, Luis R. Bellot Rubio, Shibu K. Mathew +1
We report the discovery of supersonic downflows in a sunspot light bridge using measurements taken with the spectropolarimeter on board the Hinode satellite. The downflows occur in…
Global Twist of Sunspot Magnetic Fields Obtained from High Resolution Vector Magnetograms
Sanjiv Kumar Tiwari, P. Venkatakrishnan, K. Sankarasubramanian
The presence of fine structures in the sunspot vector magnetic fields has been confirmed from Hinode as well as other earlier observations. We studied 43 sunspots based on the data…
Helicity at Photospheric and Chromospheric Heights
S. K. Tiwari, P. Venkatakrishnan, K. Sankarasubramanian
In the solar atmosphere the twist parameter has the same sign as magnetic helicity. It has been observed using photospheric vector magnetograms that negative/positive helicity…