Hanle effect in the solar Ba II D2 line: a diagnostic tool for chromospheric weak magnetic fields

Abstract

The physics of the solar chromosphere depends in a crucial way on its magnetic structure. However there are presently very few direct magnetic field diagnostics available for this region. Here we investigate the diagnostic potential of the Hanle effect on the Ba II D2 line resonance polarization for the determination of weak chromospheric turbulent magnetic fields......

In press in astronomy and astrophysics

References in corpus (3)

• Collisional depolarization and transfer rates of spectral lines by atomic hydrogen. IV: application to ionised atoms
• Evidence for collisional depolarization of the \ion{Ba}{ii} $\lambda 4554$ line in the low chromosphere
• Collisional depolarization and transfer rates of spectral lines by atomic hydrogen. II: application to d states of neutral atoms

Cited by in corpus (8)

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• Origin of spatial variations of scattering polarization in the wings of the Ca {\sc i} 4227 Åline
• Formal Solutions for Polarized Radiative Transfer. IV. Numerical Performances in Practical Problems
• Modeling the quantum interference signatures of the Ba II D2 4554 A line in the second solar spectrum
• Time-Dependent Behavior of Linear Polarization in Unresolved Photospheres, With Applications for The Hanle Effect
• General model of depolarization and transfer of polarization of singly ionized atoms by collisions with hydrogen atoms
• Inversion of Zeeman polarization for solar magnetic field diagnostics
• Collisional effects on the formation of the second solar spectrum of the Sr {\sc ii} $\lambda$4078 line