Fourier analysis of Fe I lines in spectra of the Sun, α Centauri A, Procyon, Arcturus and Canopus.

Details Fourier analysis of Fe I lines in spectra of the Sun, α Centauri A, Procyon, Arcturus and Canopus. Fourier analysis of Fe I lines in spectra of the Sun, α Centauri A, Procyon, Arcturus and Canopus.

Jun 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998kfnt...14..219s&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 14, No. 3, p. 219 - 233

Physics

Turbulence: Stellar Atmospheres, Solar Atmosphere: Turbulence, Solar Atmosphere: Iron Lines, Stellar Atmospheres: Iron Lines, Velocities: Solar Atmosphere, Velocities: Stellar Atmospheres

Scientific paper

Spectral observations with resolution 200000 have been used to study turbulent velocities in the atmospheres of the Sun, α Centauri A, Procyon, Arcturus, Canopus, and to estimate the rotation velocity (Vesin i) of Canopus. It was found that the isotropic microturbulent velocities and radial-tangential macroturbulent velocities are quite suitable approximations to describe velocity field in the atmospheres of all stars studied except Canopus.

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