Photoelectric photometry of the short-period binary AX Draconis

Details Photoelectric photometry of the short-period binary AX Draconis Photoelectric photometry of the short-period binary AX Draconis

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988acasn..29..367z&link_type=abstract

(Acta Astronomica Sinica, vol. 29, no. 4, 1988, p. 367-373) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 13, June 1

Astronomy and Astrophysics

Astrophysics

1

Eclipsing Binary Stars, Electrophotometry, H Beta Line, Roche Limit, Ubv Spectra, Astronomical Photometry, Light Curve, Mass Ratios, Spectral Bands, Stellar Spectra

Scientific paper

In March-June 1986, photoelectric photometry was obtained for the short-period binary star AX Dra in Stromgren's uvby bands and in H-beta. Results of analysis show the binary to be a near-contact detached system with a photometric mass ratio of 0.775 + or - 0.007. The spectral type of the main component is F1, while that of the secondary is probably K3. The orbital period is rather stable. The main component is probably at the evolutionary stage of having expanded to nearly filling its Roche lobe.

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