Cepheid studies. II - A third period in the beat Cepheid TU Cassiopeiae

Details Cepheid studies. II - A third period in the beat Cepheid TU Cassiopeiae Cepheid studies. II - A third period in the beat Cepheid TU Cassiopeiae

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...218..209f&link_type=abstract

Astrophysical Journal, Part 1, vol. 218, Nov. 15, 1977, p. 209-219.

Other

56

Cepheid Variables, Fourier Analysis, Stellar Spectrophotometry, Oscillations, Stellar Mass, Stellar Models

Scientific paper

The Fourier techniques used by Faulkner (1977) in an analysis of photoelectric observations of U TrA, are applied to another well-observed beat Cepheid, TU Cas. It is found that there is a strong interaction between the primary and secondary pulsations. There is also a small-amplitude tertiary pulsation. The tertiary period suggests identification with the second-overtone radial mode. When the fundamental and second-overtone periods are used, the resulting beat mass agrees with the pulsation mass. The implications of this result are discussed.

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