Astrophysical: Radiative transfer

  • Publication
    The Scattering Polarization of the Lyα Lines of H I and He II Taking into Account Partial Frequency Redistribution and J-state Interference Effects
    Recent theoretical investigations have pointed out that the cores of the Lyα lines of H I and He II should show measurable scattering polarization signals when...
  • Publication
    The Scattering Polarization of the Sr I λ4607 Line at the Diffraction Limit Resolution of a 1 m Telescope
    One of the greatest challenges in solar and stellar physics in the coming years will be to observe the second solar spectrum with a spatial resolution...
  • Publication
    The Second Stellar Spectrum and the non-LTE Problem of the 2nd Kind
    This paper presents an overview of the radiative transfer problem of calculating the spectral line intensity and polarization that emerges from a (generally...
  • Publication
    The solar Ba{II} 4554 Å line as a Doppler diagnostic: NLTE analysis in 3D hydrodynamical model
    Aims: The aim of this paper is to analyse the validity of the Dopplergram and λ-meter techniques for the Doppler diagnostics of solar photospheric velocities...
  • Publication
    The Stellar Atmosphere Physical System I. Phenomenological Definition and Representation of a Stellar Atmosphere
    This paper is the first in a series of two that deals with the physical and numerical grounds of stellar atmospheres modelling. After a phenomenological...
  • Publication
    The Stellar Atmosphere Physical System II. An Operative Sequential Algorithm to Solve the Stellar Atmosphere Problem
    In this paper, the second and the last of the series, we present a sequential algorithm to solve the stellar atmosphere problem that may serve as a paradigm for...
  • Publication
    The transfer of polarized radiation in resonance lines with partial frequency redistribution, J-state interference, and arbitrary magnetic fields. A radiative transfer code and useful approximations
    Aims: We present the theoretical framework and numerical methods we have implemented to solve the problem of the generation and transfer of polarized radiation...
  • Publication
    The transfer of resonance line polarization with partial frequency redistribution and J-state interference. Theoretical approach and numerical methods
    The linear polarization signals produced by scattering processes in strong resonance lines are rich in information on the magnetic and thermal structure of the...
  • Publication
    The Transfer of Resonance Line Polarization with Partial Frequency Redistribution in the General Hanle–Zeeman Regime
    The spectral line polarization encodes a wealth of information about the thermal and magnetic properties of the solar atmosphere. Modeling the Stokes profiles...