Abstract Details
| Name: Supriya Hebbur Dayananda Affiliation: Indian Institute of Astrophysics, Bengaluru Conference ID: ASI2015_719 Title : 1-D modeling of the Center-to-limb variation of the Stokes profiles of the Ca I 4227 A line Authors and Co-Authors : H. N. Smitha^{1}, K. N. Nagendra^{1}, J. O. Stenflo^{2,3}, M. Bianda^{3}, R. Ramelli^{3}, B. Ravindra^{1}, and L. S. Anusha^{4} 1. Indian Institute of Astrophysics, Bangalore 560034, India 2. Institute of Astronomy, ETH Zurich, CH-8093 Zurich, Switzerland 3. Istituto Ricerche Solari Locarno, Via Patocchi, CH-6605 Locarno-Monti, Switzerland 4. Max Planck Institut f\"ur Sonnesystemforschung, Justus-von-Liebig-Weg 3, D-37077 G\"ottingen, Germany Abstract Type : Poster Abstract Category : Sun and the Solar System Abstract : The observed center to limb variation (CLV) of different lines in the linearly polarized spectrum of the Sun i.e., the Second Solar Spectrum (SSS) can be used to sample the height dependence of various atmospheric quantities like the magnetic fields via the Hanle effect. This is because the observations made at different lines of sight sample different heights in the solar atmosphere. We have attempted to simultaneously model the CLV of the observed Stokes ($I$, $Q/I$) profiles of the Ca I 4227 A line. For purpose of modelling we used various 1-D solar model atmospheres. We found that all the standard model atmospheres attempted by us and also an appropriate combination of them fail to simultaneously fit the CLV of the observed Stokes ($I$, $Q/I$) profiles. The details of our modeling efforts and the results will be presented. |