40 citations · 142 across the 12 of their papers we have counts for
6 papers · 1 filter
Error Propagation from Integral Moments and Spectral Derivatives of Stokes Profiles to Magnetic Observables
Roberto Casini
We aim to derive convenient analytic estimations of magnetic inference errors, which can be used to inform and facilitate the creation of the science-traceability matrix of a polar…
Image instabilities and polarization cross-talk
Roberto Casini, Alfred G. de Wijn
We expand on our previous study of the impact of atmospheric seeing on polarization cross-talk, and show how the formalism that was developed in that work can be applied to treat t…
Optimal polarization modulation and calibration schemes
Roberto Casini, David M. Harrington, Alfred G. de Wijn
We review the algebraic definition of the efficiency of a polarization modulation scheme, which is commonly adopted for solar and stellar spectro-polarimetry applications, and gene…
Improved search of PCA databases for spectro-polarimetric inversion
R. Casini, A. Asensio Ramos, B. W. Lites +1
We describe a simple technique for the acceleration of spectro-polarimetric inversions based on principal component analysis (PCA) of Stokes profiles. This technique involves the i…
Analysis of Seeing-Induced Polarization Cross-Talk and Modulation Scheme Performance
Roberto Casini, Alfred G. de Wijn, Philip G. Judge
We analyze the generation of polarization cross-talk in Stokes polarimeters by atmospheric seeing, and its effects on the noise statistics of spectropolarimetric measurements for b…
Multi-line Stokes inversion for prominence magnetic-field diagnostics
R. Casini, A. Lopez Ariste, F. Paletou +1
We present test results on the simultaneous inversion of the Stokes profiles of the He I lines at 587.6 nm (D_3) and 1083.0 nm in prominences (90-deg scattering). We created datase…