Detection of emission in the Si I 1082.7 nm line core in sunspot umbrae
Context. Determining empirical atmospheric models for the solar chromosphere is difficult since it requires the observation and analysis of spectral lines that are affected by non-local thermodynamic equilibrium (NLTE) effects. This task is especially difficult in sunspot umbrae because of lower continuum intensity values in these regions with
Orozco Suárez, D. et al.
Fecha de publicación:
11
2017