Astronomy and Astrophysics – Astronomy
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.256...13s&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 256, no. 1, May 1, 1992, p. 13-25.
Astronomy and Astrophysics
Astronomy
22
Magnetic Flux, Magnetoacoustic Waves, Solar Magnetic Field, Magnetohydrodynamics, Photosphere, Radiative Transfer, Spectral Line Width, Standing Waves, Stokes Law Of Radiation, Wave Propagation
Scientific paper
Linear calculations of undamped magnetoacoustic waves utilizing the thin-tube approximation are presented and their influence on the Stokes I and V line parameters of a set of photospheric spectral lines is analyzed. To improve the observational diagnostics of flux tube waves, the dependence of various line parameters, such as the Stokes V zero-crossing wavelength, Stokes V amplitude, width area and asymmetry, on wave parameters is studied. It is determined that it is possible to set a lower limit on the energy flux transported by longitudinal tube waves by measuring time series of the Stokes V zero-crossing wavelength of a selected group of lines.
Roberts Barney B.
Solanki Sami K.
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