From the 1 of 5 linked papers with an AI index.
5 papers
Magnetic Field Stratification in Active-Region Plage from Ca II K and Ca II 8542 Ã Spectropolarimetry
Iñigo Juanikorena Berasategi, Ernest Alsina Ballester, Javier Trujillo Bueno +31
The study measures how the line‑of‑sight magnetic field strength changes from the photosphere to the upper chromosphere in solar active‑region plage using Ca II K and Ca II 8542 Å…
Observational insights into Sr I 4607 Ã scattering polarization with DKIST/ViSP
Franziska Zeuner, Ernest Alsina Ballester, Luca Belluzzi +4
Scattering polarization signals in the Sr I 4607 Ã spectral line are among the strongest originating from the solar photosphere, offering a powerful diagnostic of tangled magnetic…
DKIST resolves sub-arcsec photospheric scattering polarization
Franziska Zeuner, Luca Belluzzi, Ernest Alsina Ballester +4
Scattering polarization signals offer a unique diagnostics of the physical conditions in the solar atmosphere, in particular magnetic fields via the Hanle effect. However, their sp…
Spectropolarimetric synthesis of forbidden lines in MHD models of coronal bright points
Ernest Alsina Ballester, Daniel Nóbrega-Siverio, Fernando Moreno-Insertis +1
The inference of the magnetic field vector from spectropolarimetric observations is crucial for understanding the physical processes governing the solar corona. We investigate whic…
A numerical approach for modelling the polarisation signals of strong resonance lines with partial frequency redistribution. Numerical applications to two-term atoms and plane-parallel atmospheres
Fabio Riva, Gioele Janett, Luca Belluzzi +6
Aims. The main goal of this paper is to present an accurate and efficient numerical strategy for solving the radiative transfer problem for polarised radiation in strong resonance…