Astronomy and Astrophysics – Astrophysics
Scientific paper
Sep 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..51...77l&link_type=abstract
Astrophysics and Space Science, vol. 51, no. 1, Sept. 1977, p. 77-109. Research supported by the Ministry of Coordination and P
Astronomy and Astrophysics
Astrophysics
20
Astronomical Photometry, Eclipsing Binary Stars, Fourier Analysis, Light Curve, Variable Stars, Frequency Response, Limb Darkening, Perturbation Theory, Stellar Occultation, Stellar Rotation
Scientific paper
The present paper establishes the explicit forms of the photometric perturbations in the frequency-domain of close binaries whose components are distorted by axial rotation and mutual tidal action. The light changes and the photometric perturbations within eclipses in the frequency-domain are described. The explicit forms of the perturbations for occultation eclipses terminating in totality are given, and analogous results are established for transit eclipses terminating in annular phases. In this latter case the results can be expressed in terms of the photometric perturbations for total eclipses and in terms of some series. To facilitate applications to actual stars these series have been computed, and the results are discussed.
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