Pulsation of the δ Scuti star VZ Cancri

¹ Laboratoire d'Astrophysique de Toulouse, Observatoire Midi-Pyrénées, 14 avenue Édouard Belin, F-31400 Toulouse, France
² Beijing Astronomical Observatory, Chinese Academy of Sciences, Beijing 100080, China

Send offprint request to: J.-N. Fu

Received: 25 August 1997
Accepted: 5 January 1999

Abstract

After the "” technique is used to study the pulsation of the δ Scuti star VZ Cnc with the times of maximum light listed in the literature and a newly-determined time based on new photometry for this star, some high-quality photometry light curves in the literature are analysed by the Fourier decomposition, showing that there are more than 2 frequencies in the pulsation of this star, which might be one possible explanation of the existence of the large scatter in the "” diagram.