Multiple close frequencies of the Delta Scuti star Theta2 Tauri

Details Multiple close frequencies of the Delta Scuti star Theta2 Tauri Multiple close frequencies of the Delta Scuti star Theta2 Tauri

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...214..209b&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 214, no. 1-2, April 1989, p. 209-219. Research supported by the Direccion Gene

Astronomy and Astrophysics

Astrophysics

61

Astronomical Photometry, Binary Stars, Cepheid Variables, Stellar Oscillations, Orbital Elements, Taurus Constellation

Scientific paper

Multisite photoelectric b and V photometry of the Delta Scuti variable Theta2 Tau show five close frequencies with visual amplitude between 0.001 and 0.007 mag. The four frequencies reported by Breger et al. (1987) are confirmed. Phase shifts and amplitude ratios for the V and b-y variations are determined for various pulsation modes. The measured (O-C) values relative to the five-frequency solution agree with the predicted 141-day orbital light-time effects in the binary system and show pulsation of the more massive component.

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