Study of a light curve of Beta Persei at 3428 A

Details Study of a light curve of Beta Persei at 3428 A Study of a light curve of Beta Persei at 3428 A

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977aj.....82...67c&link_type=abstract

Astronomical Journal, vol. 82, Jan. 1977, p. 67-74.

Astronomy and Astrophysics

Astronomy

7

Balmer Series, Eclipsing Binary Stars, Light Curve, Satellite Observation, Stellar Spectrophotometry, Algol, Continuous Spectra, Data Reduction, Diurnal Variations, Limb Darkening, Monochromatic Radiation, Oao 3, Satellite Perturbation, Spaceborne Astronomy, Stellar Luminosity, Surface Temperature, Ultraviolet Spectrophotometers

Scientific paper

Photometric light-curve data obtained during Copernicus satellite observations of Beta Persei in the Balmer continuum at 3428 A are analyzed and reduced. A small but significant fluctuation with a period of very nearly 0.069167 day in the photometric counts is tentatively attributed to a small perturbation in spacecraft attitude introduced each time the satellite passes from daylight into darkness. The light curve is intensity-rectified, phase-rectified, and solved on the assumption that the limb darkening follows the linear cosine law. The resulting distributions of luminosity among the three components of Beta Persei are plotted, and it is shown that the effective temperature of Algol B may be higher than 5000 K.

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