109 citations · 585 across the 39 of their papers we have counts for
3 papers · 1 filter
On the formation of a stable penumbra in a region of flux emergence in the Sun
M. Murabito, P. Romano, S. L. Guglielmino +1
We studied the formation of the first penumbral sector around a pore in the following polarity of the Active Region (AR) NOAA 11490. We used a high spatial, spectral, and temporal…
The pre-penumbral magnetic canopy in the solar atmosphere
David MacTaggart, Salvo Guglielmino, Francesca Zuccarello
Penumbrae are the manifestation of magnetoconvection in highly inclined (to the vertical direction) magnetic field. The penumbra of a sunspot tends to form, initially, along the ar…
Formation of the penumbra and start of the Evershed flow
M. Murabito, P. Romano, S. L. Guglielmino +2
We studied the variations of line-of-sight photospheric plasma flows during the formation phase of the penumbra around a pore in Active Region NOAA 11490. We used a high spatial, s…