The Beta Cephei eclipsing binary system 16 Lacertae

Details The Beta Cephei eclipsing binary system 16 Lacertae The Beta Cephei eclipsing binary system 16 Lacertae

Jun 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...122..193g&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 122, no. 1-2, June 1983, p. 193-198.

Astronomy and Astrophysics

Astrophysics

19

Astronomical Photometry, Cepheid Variables, Eclipsing Binary Stars, Stellar Oscillations, Amplitude Distribution Analysis, Light Curve, Orbital Elements, Stellar Mass, Stellar Structure

Scientific paper

The star 16 Lac ≡ EN Lac has been observed photometrically from Spain and Mexico in order to obtain information concerning pulsational and binary characteristics. The analysis leads to results close to previous ones, i.e. a 10 M_sun; pulsating primary and a 1.3 M_sun; main sequence secondary star of spectral type F6-7. The stability of the three previously known frequencies is confirmed. A regular decrease of the amplitudes of both the 5.91 c/d and 5.86 c/d frequencies and the amplitude stability of the 5.50 c/d frequency which is now the strongest one are observed.

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