Improved values for the solar micro- and macro-turbulent filter functions

Details Improved values for the solar micro- and macro-turbulent filter functions Improved values for the solar micro- and macro-turbulent filter functions

Oct 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977soph...54..313d&link_type=abstract

Solar Physics, vol. 54, Oct. 1977, p. 313-317.

Physics

5

Solar Physics, Solar Spectra, Stellar Models, Turbulent Flow, Spectrum Analysis, Thermodynamic Equilibrium, Velocity Distribution

Scientific paper

The contributions of any arbitrary photospheric velocity field to (macroturbulent) line displacement and to (microturbulent) line broadening can be expressed by the macro- and microturbulent filters, which are functions of the wavenumber of the energy spectrum in which the line-of-sight component of the velocity field can be decomposed. As a correction to a previous computation of the macro- and microturbulent filters, improved values for the filter functions are presented for weak lines in LTE. An example of the way to use the filter functions is given.

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