Microvariability in high-amplitude delta Scuti radially pulsating stars

DOI: 
Publication date: 
15/07/1996
Main author: 
Garrido, R
IAA authors: 
Garrido, R
Authors: 
Garrido, R; Rodriguez, E
Journal: 
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Publication type: 
Article
Volume: 
281
Pages: 
696-702
Number: 
Abstract: 
Analyses of existing data of high-amplitude delta Scuti stars (HADS) show that variability, at the mmag level, is a common phenomenon among them. Detailed period analyses show that, apart from the already known case of AI Vel, two other stars - SX Phe and DY Peg - are also pulsating with more radial and/or non-radial periods than usually believed. The phenomenon, only visible when high-quality observations are available, can be of considerable interest because of the tight constraints that this imposes on the theoretical models.
Database: 
WOK
Keywords: 
stars, oscillations; delta Scuti