Details

Autor(en) / Beteiligte

• Smitha, H. N.
• Nagendra, K. N.
• Stenflo, J. O.
• Bianda, M.
• Sampoorna, M.
• Ramelli, R.

Titel

A revisit to model the Cr i triplet at 5204-5208 Å and the Ba ii D2 line at 4554 Å in the Second Solar Spectrum

Ist Teil von

• Proceedings of the International Astronomical Union, 2014-12, Vol.10 (S305), p.372-376

Ort / Verlag

Cambridge, UK: Cambridge University Press

Erscheinungsjahr

2014

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• In our previous attempt to model the Stokes profiles of the Cr i triplet at 5204-5208 Å and the Ba ii D2 at 4554 Å, we found it necessary to slightly modify the standard FAL model atmospheres to fit the observed polarization profiles. In the case of Cr i triplet, this modification was done to reduce the theoretical continuum polarization, and in the case of Ba ii D2, it was needed to reproduce the central peak in Q/I. In this work, we revisit both these cases using different standard model atmospheres whose temperature structures closely resemble those of the modified FAL models, and explore the possibility of synthesizing the line profiles without the need for small modifications of the model atmosphere.