EW Scuti - A double-mode cepheid

Details EW Scuti - A double-mode cepheid EW Scuti - A double-mode cepheid

Apr 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...145..283c&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 145, no. 2, April 1985, p. 283-285.

Astronomy and Astrophysics

Astrophysics

6

Cepheid Variables, Light Curve, Periodic Variations, Stellar Magnitude, Fourier Analysis, Frequency Distribution

Scientific paper

The published observational data on light variations in EW Sct (Bakos, 1950 and Eggen, 1973) are subjected to frequency analysis using a Fourier technique and phase-dispersion minimization with bin structure (5,1). The results are presented in tables and graphs and discussed. Two periods, of 5.8195 + or - 0.0005 and 4.0646 + or - 0.0003 days, are identified, with a corresponding period ratio of 0.6984 + or 0.0001. EW Sct is classified as a double-mode cepheid with a stable period over a 30-yr period, mass 2.7 solar mass, and radius 36.4 solar radii.

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