The Light Curve Changes of VW Cephei

✍ Scribed by I. Kotarska; Z. Glownia

• Publisher: John Wiley and Sons
• Year: 1983
• Tongue: English
• Weight: 448 KB
• Volume: 304
• Category: Article
• ISSN: 0004-6337
• DOI: 10.1002/asna.2113040407

✦ Synopsis

A long series of photoelectric observations of the W UMa-type eclipsing binary VW Cephei collected since 1952 is discussed. The so-called KWEE effect is examinedregarding the heights of maxima and the depths of minimain order to detect periodicities i n the light curve changes. The frequency analysis reveals periodicities at the small homogeneous observational domains only, but the power spectrum (in sence of DFT) of all observations is very complicated for exact interpretation. The light curve changcs are entirely real much excccding the possible errors, but they havc lost their periodic character in the whole discusscd time interval. I 0.0009 -0.0005 -0.0015 ~I 0 . O O O I