Astronomy and Astrophysics – Astronomy
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.256...37h&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 256, no. 1, May 1, 1992, p. 37-64. Research supported b
Astronomy and Astrophysics
Astronomy
26
Chromosphere, Giant Stars, Stellar Atmospheres, Abundance, Emission Spectra, Interstellar Extinction, Optical Thickness, Radiative Transfer, Stellar Luminosity, Stellar Models
Scientific paper
Detailed models of the chromospheres of several 'hybrid' bright giants are presented. The models extend from the base of the chromosphere and into the transition area. These chromospheric models are based on radiative transfer calculations for a range of atoms and emission lines. The presence of steep turbulent velocity gradients leads to profiles of optically thin chromospheric emission lines that are heavily dependent on the distribution of emitting material with temperature.
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