Absolute dimensions of early-type eclipsing binary stars. II - AH Cephei

Details Absolute dimensions of early-type eclipsing binary stars. II - AH Cephei Absolute dimensions of early-type eclipsing binary stars. II - AH Cephei

Sep 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...236..409h&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 236, no. 2, Sept. 1990, p. 409-415. Research supported by NSERC.

Astronomy and Astrophysics

Astrophysics

16

Astronomical Spectroscopy, Early Stars, Eclipsing Binary Stars, Stellar Structure, Light Curve, Main Sequence Stars, Radial Velocity, Spectral Line Width, Stellar Evolution, Stellar Orbits

Scientific paper

From a new spectroscopic study of the components of AH Cephei, and the recent light curve solution of Bell et al. (1986), new absolute dimensions are derived for the components of this early-type system. Measurements of equivalent width give a true light ratio of 1.3 + or - 0.3. The absolute visual magnitudes are -3.5 + or - 0.4 and -3.3 + or - 0.2, for the primary and secondary, respectively. These results show that AH Cephei is a detached main-sequence system having an age of about 6 million yr.

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