The damping constant in the atmospheres of K giants

Details The damping constant in the atmospheres of K giants The damping constant in the atmospheres of K giants

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986kfnt....2...54p&link_type=abstract

Kinematika i Fizika Nebesnykh Tel (ISSN 0233-7665), vol. 2, July-Aug. 1986, p. 54-56. In Russian.

Physics

2

Giant Stars, K Stars, Stellar Atmospheres, Stellar Physics, Atmospheric Models, Iron, Late Stars, Line Spectra, Metallicity

Scientific paper

Consideration is given to a set of atmosphere models of K giants with T = 4400 K, log g = 3.0, 2.5, and 2.0; and with Teff = 4000 K, log g = 2.5, 2.0, 1.5, and 1.0, with solar chemical composition. Values of damping constants determined by natural, Stark, and van der Waals broadening mechanisms are obtained for these models. It is shown that lines of moderate intensity have different sensitivities to variations of the damping constant.

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