Time evolution of Hanle and Zeeman polarization in MHD models

TL;DR

This paper emphasizes the importance of considering temporal dynamics in modeling and interpreting polarization signals in the solar chromosphere to improve diagnostic techniques and understanding of the second solar spectrum.

Contribution

It introduces a framework for studying the time evolution of Hanle and Zeeman polarization in MHD models of the solar chromosphere.

Findings

Time-dependent calculations reveal the significance of dynamics in polarization signals.

Explicitly modeling temporal variations enhances solar polarization diagnostics.

Understanding polarization evolution aids in interpreting the second solar spectrum.

Abstract

Exposing the polarization signatures of the solar chromosphere requires studying its temporal variations, which is rarely done when modelling and interpreting scattering and Hanle signals. The present contribution sketches the scientific problem of solar polarization diagnosis from the point of view of the temporal dimension, remarking some key aspects for solving it. Our time-dependent calculations expose the need of considering dynamics explicitly when modelling and observing scattering polarization in order to achieve effective diagnosis techniques as well as a deeper knowledge of the second solar spectrum.