Astrofísicas: Transferencia radiativa

  • Charla
    (1) The effect of magnetic fields on solar abundance determinations (2) The solar photosphere in 3D. This time from observations
    (1) In a recently published differential analysis (see Fabbian et al) we have derived abundance corrections for iron lines, using synthetic spectra from solar...
  • Charla
    1st IAU-G5 seminar: The revolution of task-based computing, applied to stellar and planetary atmospheres
    (This seminar is organized by the IAU G5 commission on stellar and planetary atmospheres) Task-based computing is a method where computational problems are...
  • Publicación
    3D non-LTE corrections for Li abundance and 6Li/7Li isotopic ratio in solar-type stars. I. Application to HD 207129 and HD 95456
    Context. Convective motions in solar-type stellar atmospheres induce Doppler shifts that affect the strengths and shapes of spectral absorption lines and create...
  • Publicación
    A collection of model stellar spectra for spectral types B to early-M
    Context. Models of stellar spectra are necessary for interpreting light from individual stars, planets, integrated stellar populations, nebulae, and the...
  • Publicación
    A Constraint on brown dwarf formation via ejection: radial variation of the stellar and substellar mass function of the young open cluster IC 2391
    Using the Wide Field Imager (WFI) at the ESO 2.2 m telescope at La Silla and the CPAPIR camera at the CTIO 1.5 m telescope at Cerro Tololo, we have performed an...
  • Publicación
    A Detailed Analysis of an Ephemeral Region .
    In order to improve the understanding of the process of emergence of magnetic flux on the solar surface, we studied the temporal evolution of an ephemeral...
  • Publicación
    A Forth-and-Back Implicit Lambda -Iteration
    In many radiative transfer (RT) problems, the sources contain a scattering term that couples all the specific RT equations, one for each frequency and direction...
  • Publicación
    A Geometrical Height Scale for Sunspot Penumbrae
    Inversions of spectropolarimetric observations of penumbral filaments deliver the stratification of different physical quantities in an optical depth scale...
  • Publicación
    A Key Physical Mechanism for Understanding the Enigmatic Linear Polarization of the Solar Ba II and Na I D1 Lines
    The linearly polarized spectrum of the solar limb radiation produced by scattering processes is of great diagnostic potential for exploring the magnetism of the...