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Title: 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
Authors: Smitha, H. N
Nagendra, K. N
Stenflo, J. O
Bianda, M
Sampoorna, M
Ramelli, R
Keywords: Line: formation;Line: profiles;Polarization;Radiative transfer;Scattering;Sun: atmosphere
Issue Date: Oct-2015
Publisher: Cambridge University Press
Citation: Proceedings of the International Astronomical Union, Vol. 305, pp. 372 - 376
Abstract: 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.
Description: Restricted Access
ISSN: 1743-9213
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Appears in Collections:IIAP Publications

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