Other
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010pasp..122.1432l&link_type=abstract
Publications of the Astronomical Society of the Pacific, Volume 122, issue 898, pp.1432-1436
Other
Stars
Scientific paper
We report here the δ Scuti pulsation characteristics of low-amplitude oscillations of star V461 Per in the α Persei cluster. The 61 hr of high-quality light curve over seven nights have confirmed the low-amplitude oscillation characteristics of V461 Per. The amplitude spectra indicate a multiperiodic pulsation behavior, two pulsation frequencies f1 = 28.0433 cycle day-1 and f2 = 22.5973 cycle day-1 have been confidently identified, and three other frequencies ( f3 = 4.5038 , f4 = 28.3593 , and f5 = 22.8838 cycle day-1 ) are probable. Explanation on the complicated frequency distribution requires a combination of both radial and nonradial modes. A preliminary comparison with models suggests that the observed modes would lie in the range of modes from high rank g to p3 . The δ Scuti variable V461 Per has almost the same Teff and log g as the δ Scuti variable V459 Per in the same α Persei cluster. This suggests that it will be meaningful to have a comparison study of the two variables, and the pulsation characteristics discovered in the observations demonstrate that they share similar main frequency distribution style.
Li Qi-Sheng
Li Zhi Peng
Xu Yan
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