HD 114839 - An Am star showing both δ Scuti and γ Dor pulsations discovered through MOST photometry
- King, H (Department of Physics and Astronomy)
- Matthews, Jaymie M. (Department of Physics and Astronomy)
- Weiss, Werner Wolfgang (Department of Astrophysics, Faculty of Earth Sciences, Geography and Astronomy, University of Vienna)
- Rowe, Jason F. (Department of Physics and Astronomy)
- Cameron, Chris (Department of Physics and Astronomy)
- Kuschnig, Rainer (Department of Physics and Astronomy)
- Guenther, David B. (Department of Astronomy and Physics)
- Moffat, Anthony F J (Mont Mégantic Observatory)
- Rucinski, Slavek M. (David Dunlap Observatory)
- Sasselov, Dimitar (Harvard-Smithsonian Center for Astrophysics (CfA))
- Walker, Gordon A. H. (University of British Columbia)
Publication date
November 2006
DOI Publisher
Osterreichische Akademie der Wissenschaften ISSN
1021-2043 Citation count (estimate)
15Abstract
Using MOST1 (Microvariability and Oscillations of STars) satellite guide star photometry, we have discovered a metallic A star showing hybrid p- and gmode pulsations. HD 114839 was observed nearly continuously for 10 days in March, 2005. We identify frequencies in three groups: the first centered near 2 cycles/day, in the ? Dor pulsation range, and two others near 8 and 20, both in the ? Scuti range. This is only the fourth known such hybrid pulsator, including another MOST discovery (Rowe et al. 2006)
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