Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1980
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....81..336s&link_type=abstract
Astronomy and Astrophysics, vol. 81, no. 3, Jan. 1980, p. 336-339.
Astronomy and Astrophysics
Astrophysics
14
Astrometry, Eclipsing Binary Stars, Main Sequence Stars, Stellar Structure, Dimensional Measurement, Flux Density, Infrared Radiation, Interferometry, Parallax, Radii, Stellar Evolution
Scientific paper
Radii of 12 apparently single stars are determined using angular diameters derived using the infra-red flux method and published parallax values. These radii are combined with others determined using the intensity interferometer for comparison with radii determined for eclipsing binary systems, which are independent of distance. The two sets of data agree well. The photometrically determined radii of Gray are also compared with the infra-red flux values and found to be in good agreement. Radii are plotted against spectral type and a best fit found. It is suggested that the observed spread in radius when plotted against spectral type is due to evolutionary behavior and that insufficient knowledge is available to draw more detailed conclusions.
Blackwell D. E.
Shallis M. J.
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