Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986aj.....91.1428t&link_type=abstract
Astronomical Journal (ISSN 0004-6256), vol. 91, June 1986, p. 1428-1437. NSF-supported research.
Astronomy and Astrophysics
Astronomy
34
Eclipsing Binary Stars, G Stars, Main Sequence Stars, Stellar Spectra, Astronomical Photometry, Radial Velocity, Stellar Mass
Scientific paper
The presented analysis of α CrB is based on the Ebbighausen (1976) spectroscopic observations of the primary component, on the McDonald Reticon observations of the secondary, and on the Kron-Gordon (1953) photometric observations at 0.72 μm. The primary component, with mass 2.6 M_sun; and spectral type A0, lies about 0.4 mag above the zero-age main sequence, while the secondary, with mass 0.92 M_sun;, has a radiative flux corresponding to a type near G5, and must lie close to the ZAMS. The system is unique among analyzed main-sequence systems with respect to its small mass ratio and large magnitude difference between the components.
Popper Daniel M.
Tomkin Jocelyn
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