Bibcode
de la Cruz Rodríguez, J.; Socas-Navarro, H.; van Noort, M.; Rouppe van der Voort, L.
Referencia bibliográfica
Memorie della Societa Astronomica Italiana, v.81, p.716 (2010)
Fecha de publicación:
2010
Número de citas
7
Número de citas referidas
6
Descripción
The solar chromosphere is a vigorously dynamic region of the sun, where
waves and magnetic fields play an important role. To improve
chromospheric diagnostics, we present new observations in Ca II 8542
carried out with the SST/CRISP on La Palma, working in full-Stokes mode.
We measured Stokes line profiles in active regions. The line profiles
observed close to the solar limb show signals in all four Stokes
parameters, while profiles observed close to disk center only show
signals above the noise level in Stokes I and V. We used the NLTE
inversion code 'NICOLE' to derive atmospheric parameters in umbral
flashes present in a small round sunspot without penumbra.