Absorption and emission coefficients of non-equilibrium plasmas

Bibcode
WOS:000073263300008
Crivellari, L.; Prada, F.; Simonneau, E.
Referencia bibliográfica

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA B-GENERAL PHYSICS RELATIVITY ASTRONOMY AND MATHEMATICAL PHYSICS AND METHODS, Volume 113, 361-374

Fecha de publicación:
3
1998
Número de autores
3
Número de autores del IAC
2
Número de citas
0
Número de citas referidas
0
Descripción
In non-equilibrium plasma spectroscopy it may happen to have to deal with ensembles of particles, whose velocity distribution is not the equilibrium (i.e. Maxwell) one. Consequently, the shape-profile-of the relevant emission or absorption coefficient is different from the profile (Gauss or Voigt) that corresponds to the equilibrium velocity distribution function. The computation of the emission and absorption coefficients in the case of an arbitrary velocity distribution can be painstaking and, above all, risky from the numerical point of view. In this paper, we present an easy way to perform the above computations. As a consequence, the treatment of the corresponding inverse problem also becomes easy: the reconstruction of a velocity distribution function, once the values of the corresponding emission (or absorption) coefficient are known for all the directions and frequencies.
Tipo
Con árbitro
Métodos

Te puede interesar

  • Con árbitro
    Euclid preparation. XXXVII. Galaxy colour selections with Euclid and ground photometry for cluster weak-lensing analyses

    Aims: We derived galaxy colour selections from Euclid and ground-based photometry, aiming to accurately define background galaxy samples in cluster weak-lensing analyses. These selections have been implemented in the Euclid data analysis pipelines for galaxy clusters. Methods: Given any set of photometric bands, we developed a method for the

    Euclid Collaboration et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.139E
    Número de citas
    2
  • Con árbitro
    The discovery space of ELT-ANDES. Stars and stellar populations

    The ArmazoNes high Dispersion Echelle Spectrograph (ANDES) is the optical and near-infrared high-resolution echelle spectrograph envisioned for the Extremely Large Telescope (ELT). We present a selection of science cases, supported by new calculations and simulations, where ANDES could enable major advances in the fields of stars and stellar

    Roederer, Ian U. et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024ExA....57...17R
    Número de citas
    0
  • Con árbitro
    Euclid preparation. XXXVI. Modelling the weak lensing angular power spectrum

    This work considers which higher order modeling effects on the cosmic shear angular power spectra must be taken into account for Euclid. We identified the relevant terms and quantified their individual and cumulative impact on the cosmological parameter inferences from Euclid. We computed the values of these higher order effects using analytic

    Euclid Collaboration et al.

    Fecha de publicación:

    4
    2024
    Bibcode
    2024A&A...684A.138E
    Número de citas
    4