Stability in the Light Curves of High-Amplitude #delta# Scuti Star: Selected Monoperiodic Stars

摘要

We have analyzed all the reliable photometric data sets available in the bibliography for a selected sample of monoperiodic high-amplitude #delta# Scuti stars in order to study the stability of their light curves. A total of 169 data sets and more than 22,000 points have been considered for seven stars: ZZ Mic, EH Lib, BE Lyn, YZ Boo, SZ Lyn, AD CMi, and DY Her. The results do not reveal significant long-term changes of amplitude of the light curves for any of these stars.