| Name: | Devang Agnihotri |
| Affiliation: | Indian Institute of Astrophysics |
| Conference ID: | ASI2025_723 |
| Title: | Understanding Hanle effect in Ca I 4227 A line using magnetohydrodynamic simulations of the Solar atmosphere |
| Authors: | Devang Agnihotri, L.S. Anusha |
| Authors Affiliation: | 1 Devang Agnihotri Affiliation (Indian Institute of Astrophysics)
2 L.S. Anusha Affiliation (Indian Institute of Astrophysics) |
| Mode of Presentation: | Poster |
| Abstract Category: | Sun, Solar System, Exoplanets, and Astrobiology |
| Abstract: | Scattering polarization in strong resonance lines such as the Ca I 4227 Å, formed in the chromosphere can probe the chromospheric magnetic fields via the Hanle effect. Predominantly one-dimensional (1D) semi-empirical model atmospheres were used to study the linear polarization in this line. Recently, Harsh et al. (2024) studied the resonance scattering polarization in Ca I 4227 Å using magnetohydrodynamic (MHD) simulations of the solar atmosphere from the Bifrost code, along a slanted ray with heliocentric angle μ=0.3. In this work we include the effect of weak magnetic fields (Hanle effect) on the polarization profiles and compare them with the non-magnetic cases. |
