Discovery of a new multiperiodic δ scuti variable star

A. Y. Zhou, D. An, J. R. Eggen, M. D. Reed, D. M. Terndrup, S. L. Harms

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2 Scopus citations


We report on the discovery of a new short-periodic pulsating variable star in the field of the pulsating sdB star KPD 2109+4401. The star was observed on 10 consecutive nights. Based on the light curves, we detect three pulsation frequencies at 10.308, 4.023 and 11.075 cycle d-1 with amplitudes of 11.1, 4.3 and 4.2 milli-magnitudes, respectively. Using the existing data from other sky surveys, we estimate a spectral type of late F and other atmospheric parameters. Then we discuss the observational properties of the star. Finally it is classified to be a new low-amplitude multiperiodic δ Scuti star. A future interest addressed is to accurately determine the star's spectral type and then to judge a possible link to γ Doradus-type pulsation.

Original languageEnglish
Pages (from-to)29-36
Number of pages8
JournalAstrophysics and Space Science
Issue number1
StatePublished - Sep 2006


  • Stars: individual: GSC2.2 N033131287450
  • Stars: oscillations
  • Stars: variable: δ Scuti stars


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