HD 62454 and HD 68192: Two new gamma Doradus variables

DOI: 
10.1086/301136
Publication date: 
01/12/1999
Main author: 
Kaye, AB
IAA authors: 
Authors: 
Kaye, AB; Henry, GW; Fekel, FC; Gray, RO; Rodriguez, E; Martin, S; Gies, DR; Bagnuolo, WG; Hall, DS
Journal: 
ASTRONOMICAL JOURNAL
Publication type: 
Article
Volume: 
118
Pages: 
2997-3005
Number: 
Abstract: 
We present multilongitude, multicolor photometry and simultaneous high-resolution, high signal-to-noise spectroscopy of the newly discovered gamma Doradus variables HD 62454 and HD 68192. From combined Johnson and Stromgren data, we are able to identify five independent periods in HD 62454 and two stable periods in HD 68192. The data presented are sufficient to rule out all physically meaningful types of variations, with the one exception of the high-order, low-degree, nonradial gravity-mode pulsations that are believed to be at work in gamma Doradus stars. We also find that HD 62454 is a double-lined spectroscopic binary and we present an orbital solution.
Database: 
WOK
ADS
URL: 
https://ui.adsabs.harvard.edu/#abs/1999AJ....118.2997K/abstract
ADS Bibcode: 
1999AJ....118.2997K
Keywords: 
stars : oscillations; stars : variables : other