53 Persei: A slowly pulsating B star

DOI: 
Publication date: 
01/03/1998
Main author: 
Chapellier E.
IAA authors: 
Garrido R.
Authors: 
Chapellier E., Sadsaoud H., Valtier J.C., Garrido R., Sareyan J.P., Le Contel J.M., Alvarez M.
Journal: 
Astronomy and Astrophysics
Publication type: 
Article
Volume: 
331
Pages: 
1046-1050
Number: 
Abstract: 
A new investigation of the behaviour of the star 53 Per was performed. New photometric observations allow to confirm two dominant periods p1=2.16d, p2=1.67 d. A third one p3=3.64 d is detected. These long period variations are present in our radial velocities data and in old equivalent width data. The amplitude of the p1 = 2.16d period increases from 1977 to 1991, while the amplitude of the 1.67 d period remains constant. Considering the observational characteristics of the star since 1997, 53 Per clearly belongs to the Slowly Pulsating B stars group as defined by Waelkens (1991) and North & Paltani (1994).
Database: 
WOK
SCOPUS
Keywords: 
53 Persei; General stars; Individual; Oscillations stars; Stars; Variables