Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...111..233h&link_type=abstract
Astronomy and Astrophysics, vol. 111, no. 2, July 1982, p. 233-238.
Astronomy and Astrophysics
Astrophysics
8
Abundance, Solar Atmosphere, Solar Temperature, Stellar Spectra, Astronomical Models, Inhomogeneity, Iron, Line Spectra, Oxygen
Scientific paper
Since the number densities of the elements and their line intensities are nonlinear functions of temperature, neglecting the temperature inhomogeneities in the solar atmosphere causes an error in abundance determinations. To estimate the magnitude of these errors arising from the granular temperature inhomogeneities, several two-stream models of the solar photosphere are constructed, using the Holweger-Muller (1974) atmosphere as the mean model. Solar f-values are derived from the two-stream models and the mean model for a set of absorption lines of Fe I, Fe II, and O I. The spread of the f-values for the different models gives the error of the abundance determination originating in the use of homogeneous models.
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