Radiative diagnostics in the solar photosphere and chromosphere

Abstract

Magnetic fields on the surface of the Sun and stars in general imprint or modify the polarization state of the electromagnetic radiation that is leaving from the star. The inference of solar/stellar magnetic fields is performed by detecting, studying and modeling polarized light from the target star. In this review we present an overview of techniques that are used to study the atmosphere of the Sun, and particularly those that allow to infer magnetic fields. We have combined a small selection of theory on polarized radiative transfer, inversion techniques and we discuss a number of results from chromospheric inversions.

Accepted for publication in Space Science Reviews. Replacement: Added references to Telescopes and instrumentation

References in corpus (22)

• CRISP Spectropolarimetric Imaging of Penumbral Fine Structure
• A Substantial Amount of Hidden Magnetic Energy in the Quiet Sun
• An Open Source, Massively Parallel Code for Non-LTE Synthesis and Inversion of Spectral Lines and Zeeman-induced Stokes Profiles
• Advanced Forward Modeling and Inversion of Stokes Profiles Resulting from the Joint Action of the Hanle and Zeeman Effects
• First Zeeman Doppler imaging of a cool star using all four Stokes parameters
• On fibrils and field lines: The nature of H$\alpha$ fibrils in the solar chromosphere
• The usefulness of analytic response functions
• Open questions on prominences from coordinated observations by IRIS, Hinode, SDO/AIA, THEMIS, and the Meudon/MSDP
• The influence of coronal EUV irradiance on the emission in the He I 10830 A and D3 multiplets
• Properties of solar plage from a spatially coupled inversion of Hinode SP data
• The magnetic field configuration of a solar prominence inferred from spectropolarimetric observations in the He I 10830 A triplet
• Influence of atomic polarization and horizontal illumination on the Stokes profiles of the He I 10830 multiplet
• Comparison of inversion codes for polarized line formation in MHD simulations. I. Milne-Eddington codes
• Heating of the magnetic chromosphere: observational constraints from Ca II 8542 spectra
• Sparse inversion of Stokes profiles. I. Two-dimensional Milne-Eddington inversions
• Spectro-polarimetric Imaging Reveals Helical Magnetic Fields in Solar Prominence Feet
• Spectropolarimetric observations of the Ca II 8498 A and 8542 A lines in the quiet Sun
• The cause of spatial structure in solar He I 1083 nm multiplet images
• Height variation of the vector magnetic field in solar spicules
• Chromospheric diagnosis with Ca II lines: forward modeling in forward scattering (I)
• Upper Chromospheric Magnetic Field of a Sunspot Penumbra: Observations of Fine Structure
• Hierarchical analysis of the quiet Sun magnetism

Cited by in corpus (6)

• Is the sky the limit? Performance of the revamped Swedish 1-m Solar Telescope and its blue- and red-beam re-imaging systems
• Spectroscopic inversions of the Ca ii 8542 Å line in a C-class solar flare
• Semi-empirical model atmospheres for the chromosphere of the sunspot penumbra and umbral flashes
• Chromospheric polarimetry through multi-line observations of the 850 nm spectral region III: Chromospheric jets driven by twisted magnetic fields
• New technique to measure the cavity defects of Fabry-Perot interferometers
• High-resolution spectroscopy of Boyajian's star during optical dimming events