Contribution to the search for solar spectral analogs - an analysis of 16 CYG A and B

Details Contribution to the search for solar spectral analogs - an analysis of 16 CYG A and B Contribution to the search for solar spectral analogs - an analysis of 16 CYG A and B

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....94..207p&link_type=abstract

Astronomy and Astrophysics, vol. 94, no. 2, Feb. 1981, p. 207-213.

Astronomy and Astrophysics

Astrophysics

30

Atmospheric Models, G Stars, Solar Spectra, Stellar Atmospheres, Stellar Spectra, Chemical Composition, Colorimetry, Hertzsprung-Russell Diagram, Spectral Line Width

Scientific paper

An analysis of 16 Cyg A and B, stars very similar to the sun, is carried out in order to find a solar twin to improve the color-temperature relations for G stars. From the analysis made in the spectral range 4300-6000, it follows that the atmospheric parameters of 16 Cyg B (effective temperature, surface gravity, chemical composition) are indistinguishable from those of the sun, while 16 Cyg A would be somewhat hotter (Theta eff = 0.85), with a smaller gravity (log g = 4.3).

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