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2007AJ....133..518L - Astron. J., 133, 518-525 (2007/February-0)
A complicated pulsation δ Scuti variable in Praesepe: HD 74028.
LI Z.P.
Abstract (from CDS):
We report the pulsation characteristics of the δ Scuti star HD 74028, a low-amplitude pulsator in the Praesepe cluster. Amplitude spectra of 126 hr of observations spanning 16 nights indicate multiperiodic pulsation behavior. We identify three frequencies, f1=22.6652, f2=23.8505, and f3=20.5254 cycles/day, and find four additional candidate frequencies, f4=17.3060, f5=12.0643, f6=14.8160, and f7=17.1143 cycles/day. This complicated frequency distribution requires an explanation that includes rotational splitting.
Abstract Copyright: ∼
Journal keyword(s): Stars: Variables: δ Scuti - Galaxy: Open Clusters and Associations: Individual: Name: Praesepe - stars: individual (HD 74028) - Stars: Oscillations
Simbad objects: 14
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