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

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Cited by in corpus (34)

• The European Solar Telescope
• DeSIRe: Departure coefficient aided Stokes Inversion based on Response functions
• Is the sky the limit? Performance of the revamped Swedish 1-m Solar Telescope and its blue- and red-beam re-imaging systems
• TIC: A Stokes inversion code for scattering polarization with partial frequency redistribution and arbitrary magnetic fields
• Small-scale dynamos: From idealized models to solar and stellar applications
• Sunrise III: Overview of Observatory and Instruments
• 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
• Heating of the solar chromosphere through current dissipation
• Hydrogen Emission from Accretion and Outflow in T Tauri Stars
• Novel framework for the three-dimensional NLTE inverse problem
• Non-thermal line broadening due to braiding-induced turbulence in solar coronal loops
• Chromospheric magnetic field: A comparison of He I 10830 A observations with nonlinear force-free field extrapolation
• Inference of electric currents in the solar photosphere
• Ubiquitous hundred-Gauss magnetic fields in solar spicules
• 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
• Semi-empirical models of spicule from inversion of Ca II 8542 Å line
• Propagation of transverse waves in the solar chromosphere probed at different heights with ALMA sub-bands
• A study of the capabilities for inferring atmospheric information from high-spatial-resolution simulations
• Convolutional Neural Networks and Stokes Response Functions
• $\text{globin}$: A spectropolarimetric inversion code for the coupled inference of atomic line parameters
• Designing wavelength sampling for Fabry-Pérot observations. Information-based spectral sampling
• The MODEST catalog of depth-dependent spatially coupled inversions of sunspots observed by Hinode/SOT-SP
• Chromosphere of the quiet sun -- I. Shock and current-sheet dynamics and heating
• The making of robust and highly performing imaging spectropolarimeters for large solar telescopes
• High-resolution spectroscopy of Boyajian's star during optical dimming events
• Neural translation for Stokes inversion and synthesis
• Multi-wavelength spectropolarimetric observations of AR13724 performed by GRIS
• Ca ii 854.2 nm in an enhanced network region simulated with MURaM-ChE
• Multi-height probing of horizontal flows in the solar photosphere
• The uncertainty of magnetic fields in 3D non-local thermodynamic equilibrium inversions
• An iterative OLA method for inversion of solar spectropolarimetric data: I. Single and multiple variable inversions of thermodynamic quantities
• Effects of spatial resolution on inferences of atmospheric quantities from simulations