40 citations · 102 across the 3 of their papers we have counts for
3 papers
HINODE Observations of Chromospheric Brightenings in the Ca II H Line during small-scale Flux Emergence Events
S. L. Guglielmino, F. Zuccarello, P. Romano +1
\ion{Ca}{2} H emission is a well-known indicator of magnetic activity in the Sun and other stars. It is also viewed as an important signature of chromospheric heating. However, the…
Spectropolarimetry of a decaying sunspot penumbra
L. R. Bellot Rubio, A. Tritschler, V. Martinez Pillet
We report on high angular resolution, high precision spectropolarimetric measurements of a decaying sunspot. The spot gradually lost its penumbra during the course of three days. I…
Flux tubes as the origin of Net Circular Polarization in Sunspot Penumbrae
J. M. Borrero, L. R. Bellot Rubio, D. A. N. Mueller
We employ a 3-dimensional magnetohydrostatic model of a horizontal flux tube, embedded in a magnetic surrounding atmosphere, to successfully reproduce the azimuthal and center-to-l…