The frequency analysis of low amplitude delta Scuti stars. V - HD 188520

Details The frequency analysis of low amplitude delta Scuti stars. V - HD 188520 The frequency analysis of low amplitude delta Scuti stars. V - HD 188520

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980mnras.193...51k&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 193, Oct. 1980, p. 51-59.

Astronomy and Astrophysics

Astronomy

6

Cepheid Variables, Stellar Spectrophotometry, Ubv Spectra, Frequency Response, Light Curve, Tables (Data)

Scientific paper

The paper analyzes HD188520 which is an A7IV/V star shown to be a new delta Scuti variable. Photometry of this star is consistent with the A7/IV/V spectral classification; a frequency analysis of 502 observations of HD188520 in a 60.5 hr period on 10 nights is presented. Two frequencies are present throughout the 66 day time-span of the data set, although the alias at 3.760/day may be the correct lower frequency. It is suggested that the frequency at 4.762/day may result from g-mode pulsation or ellipsoidal variability.

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