An Amplitude Analysis of TU Cassiopeiae

Volume 20 number 1 (1991)

Download this article (pdf)

Vicki Mader
Maria Mitchell Observatory, Nantucket, MA 02554

Abstract

TU Cas is a double-mode Cepheid variable star. The amplitudes of the two modes as observed from 1987 to 1990 are compared with previous data. A previously reported decrease in amplitude is not confirmed. This result favors stable mixed-mode pulsation over mode-switching.