The F-type eclipsing binaries ZZ Bootis, CW Eridani, and BK Pegasi

Details The F-type eclipsing binaries ZZ Bootis, CW Eridani, and BK Pegasi The F-type eclipsing binaries ZZ Bootis, CW Eridani, and BK Pegasi

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983aj.....88.1242p&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 88, Aug. 1983, p. 1242-1256. NSF-supported research.

Astronomy and Astrophysics

Astronomy

15

Eclipsing Binary Stars, F Stars, Orbital Elements, Stellar Spectra, Circular Orbits, Mass To Light Ratios, Radial Velocity

Scientific paper

Spectrographic orbits of these three double-lined binaries are determined from spectrograms obtained at the Lick Observatory. The photometric observations of ZZ Boo by McNamara et al. and of CW Eri by Chen are reanalyzed, and revised properties of the components are derived. The properties of the most definitive F-type stars are shown in the mass-radius, mass-luminosity, and color-magnitude planes, along with zero-age relations. The components of the three systems analyzed here are among the more evolved binaries having both components in the state of core hydrogen burning.

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