منابع مشابه
Solar spectral lines ("solar halo")--healing or harmful for the retina?
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The influence of torsional waves propagating along a thin, vertical, photospheric flux tube on Zeeman-split polarized line profiles (Stokes profiles) is investigated using a simple MHD model. In the presence of such a wave spatially resolved Stokes profiles are found to oscillate strongly in wavelength, amplitude and blue-red asymmetry. Qualitatively, torsional waves induce similar changes into...
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Context. The diagnosis of new high-resolution spectropolarimetric observations of solar prominences made in the visible and nearinfrared mainly, requires a radiative modelling taking into account for both multi-dimensional geometry and complex atomic models. Aims. Hereafter we contribute to the improvement of the diagnosis based on the observation of He i multiplets, by considering 2D non-LTE u...
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The kink-mode waves in solar magnetic flux tubes have been proposed as the carriers of significant amounts of energy into theupper atmosphere.Their observational signature, i.e. their influence on polarized spectral lines, is investigated theoretically using a simple MHD model and radiative transfer calculations. The results of a large model grid are presented. The wave is found to periodically...
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ژورنال
عنوان ژورنال: Highlights of Astronomy
سال: 1974
ISSN: 1539-2996
DOI: 10.1017/s1539299600001891