Astrofísicas: Transferencia radiativa

  • Publicación
    On the k-mechanism and the multidimensional Eddington approximation
    The suitability of the Eddington approximation as a theoretical framework for the study of the possibility of a k-like overstability mechanism as the driving...
  • Publicación
    On the Origin of the Type II Spicules: Dynamic Three-dimensional MHD Simulations
    Recent high temporal and spatial resolution observations of the chromosphere have forced the definition of a new type of spicule, "type II's," that are...
  • Publicación
    On the photospheric temperature in small-scale magnetic flux concentrations
    Results are presented of 2D radiative transfer calculations performed for geometric configurations that simulate partly evacuated small-scale magnetic flux...
  • Publicación
    On the Probable Existence of an Abrupt Magnetization in the Upper Chromosphere of the Quiet Sun
    We report on a detailed radiative transfer modeling of the observed scattering polarization in the Hα line, which allows us to infer quantitative information on...
  • Publicación
    On the Sensitivity of Partial Redistribution Scattering Polarization Profiles to Various Atmospheric Parameters
    This paper presents a detailed study of the scattering polarization profiles formed under partial frequency redistribution (PRD) in two thermal models of the...
  • Publicación
    On the sensitivity of the Halpha scattering polarization to chromospheric magnetism
    A particularly interesting line for exploring the physical conditions of the quiet solar chromosphere is Halpha , but its intensity profile is magnetically...
  • Publicación
    Opacity for realistic 3D MHD simulations of cool stellar atmospheres
    Context. Realistic three-dimensional time-dependent simulations of stellar near-surface convection employ the opacity binning method for the efficient and...
  • Publicación
    Optical Tomography of a Sunspot. I. Comparison between Two Inversion Techniques
    A quantitative comparison between the Milne-Eddington (ME) inversion technique implemented by Skumanich & Lites and the SIR (Stokes Inversion based on Response...
  • Publicación
    Physical properties of a sunspot chromosphere with umbral flashes
    We present new high-resolution spectro-polarimetric Ca IIλ8542 observations of umbral flashes in sunspots. At nearly 0.18 arcsec, and spanning about one hour of...