HD 114839 - An Am star showing both delta Scuti and gamma Dor pulsations discovered through MOST photometry

Details HD 114839 - An Am star showing both delta Scuti and gamma Dor pulsations discovered through MOST photometry HD 114839 - An Am star showing both delta Scuti and gamma Dor pulsations discovered through MOST photometry

2007-06-13

arxiv.org/abs/0706.1804v2

King, H. et al., 2007, CoAst, 143

Astronomy and Astrophysics

Astrophysics

Scientific paper

Using MOST (Microvariability and Oscillations of STars) satellite guide star photometry, we have discovered a metallic A star showing hybrid p- and g-mode 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 gamma Dor pulsation range, and two others near 8 and 20, both in the delta Scuti range. This is only the fourth known such hybrid pulsator, including another MOST discovery (Rowe et al. 2006, this issue).

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