Two-color photoelectric observations of the eclipsing binary BB Peg

Details Two-color photoelectric observations of the eclipsing binary BB Peg Two-color photoelectric observations of the eclipsing binary BB Peg

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26as...40...85c&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 40, Apr. 1980, p. 85-89.

Astronomy and Astrophysics

Astrophysics

8

Eclipsing Binary Stars, Electrophotometry, Stellar Spectrophotometry, Light Curve, Maxima, Minima, Spectrum Analysis

Scientific paper

V and B photoelectric lightcurves of the eclipsing binary BB Peg, obtained in August and September 1978, are presented. They were obtained partly at the Astronomical Observatory of Torino, partly at Catania Astrophysical Observatory.
The minima show nearly equal depths, whereas maxima show slightly different levels, particularly for the V observations. The (O-C) trend indicates that the period did not remain constant a satisfactory representation of all the observed times of minimum light was obtained assuming a parabolic trend in the (O-C)'s.
A preliminary solution for the elements of the system was performed with the method of Russell and Merrill due to the good agreement in the sets of elements derived from the available minima, the adopted solution was obtained averaging the results deduced in the different wavelengths.

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