Cepheids in the open cluster NGC 6067

Astronomy and Astrophysics – Astronomy

Scientific paper

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Cepheid Variables, Open Clusters, Spectrum Analysis, Brightness Distribution, Fourier Analysis, Light Curve, Stellar Oscillations, Stellar Spectra

Scientific paper

Fourier decomposition of the light curve indicates that the Cepheid HD 144972 is an overtone pulsator. Using the visual surface brightness technique, the authors find a distance to HD 144972 which places it in the open cluster NGC 6067. The evidence is strong that NGC 6067 contains two Cepheids - HD 144972 and CPD -53°7400p. The nearby Cepheid GU Nor appears not to be a cluster member.

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