activity
20062026
most citedPORTA: A three-dimensional multilevel radiative transfer code for modeling the intensity and polarization of spectral lines with massively parallel computers

86 citations · 725 across the 37 of their papers we have counts for

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Showing 2011Show all

4 papers · 1 filter

astro-ph.SR2011★ 29 cited

The Ly-alpha Lines of H I and He II: A Differential Hanle Effect for Exploring the Magnetism of the Solar Transition Region

Javier Trujillo Bueno, Jiri Stepan, Luca Belluzzi

The Ly-alpha line of He II at 304 Å is one of the spectral lines of choice for EUV channels of narrow-band imagers on board space telescopes, which provide spectacular intensity im…

astro-ph.SR2011★ 58 cited

The Hanle Effect of the Hydrogen Ly-alpha Line for Probing the Magnetism of the Solar Transition Region

Javier Trujillo Bueno, Jiri Stepan, Roberto Casini

We present some theoretical predictions concerning the amplitude and magnetic sensitivity of the linear polarization signals produced by scattering processes in the hydrogen Ly-alp…

astro-ph.SR2011

Scattering polarization and the Hanle effect in H-alpha as a probe of chromospheric magnetism: Modeling vs. Observations

Jiri Stepan, Javier Trujillo Bueno, Renzo Ramelli +1

The Hanle effect in strong spectral lines is the physical mechanism that should be increasingly exploited for quantitative explorations of the magnetism of the quiet solar chromosp…

astro-ph.SR2011★ 17 cited

Scattering Polarization of Hydrogen Lines in Weakly Magnetized Stellar Atmospheres I. Formulation and Application to Isothermal Models

Jiri Stepan, Javier Trujillo Bueno

Although the spectral lines of hydrogen contain valuable information on the physical properties of a variety of astrophysical plasmas, including the upper solar chromosphere, relat…