Comparing the Sun with other stars along the temperature coordinate

Details Comparing the Sun with other stars along the temperature coordinate Comparing the Sun with other stars along the temperature coordinate

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995pasp..107..120g&link_type=abstract

Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 107, no. 708, p. 120-123

Physics

29

Line Spectra, Solar Temperature, Stellar Color, Stellar Temperature, Temperature Measurement, Metallicity, Stellar Physics

Scientific paper

The temperature of the Sun relative to other stars is determined using high-precision measurements of the ratios of depths of spectral lines. In effect, the Sun is placed within the stellar grid of relative temperatures with an estimated uncertainty of +/- 10 K. Among others, 16 Cyg A is found to be 5 +/- 12 K hotter than the Sun, while 16 Cyg B is found to be 45 +/- 12 K cooler than the Sun. In a similar manner, color indices are inferred with the results that R-I = 0.338 +/- 0.002 on the Cousins system and B-V = 0.648 +/- 0.006. This latter value supersedes the value of 0.656 published in 1992.

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