Frequency analysis of the delta Scuti star 21 Monocerotis

Details Frequency analysis of the delta Scuti star 21 Monocerotis Frequency analysis of the delta Scuti star 21 Monocerotis

May 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.179..389s&link_type=abstract

Monthly Notices of the Royal Astronomical Society, vol. 179, May 1977, p. 389-399. Research supported by the Australian Researc

Astronomy and Astrophysics

Astronomy

22

Cepheid Variables, Dwarf Stars, Fourier Analysis, Stellar Spectra, Amplitude Distribution Analysis, Least Squares Method, Light Curve, Phase Shift, Spectral Energy Distribution

Scientific paper

A total of 1247 V observations of 21 Mon obtained in 1970-71 and 1972-73 were subjected to Fourier analysis for their component frequencies. In the two groups of data separated by a 2-yr gap, no frequencies were found common to both data groups. Within the more extensive data group (1972-73) the component frequencies were found to be present throughout the 58-day time base of the observations but with amplitude or phase variations or both on time scales as short as one week.

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