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2007AJ....133.1302M - Astron. J., 133, 1302-1306 (2007/April-0)
A period study of the eclipsing binary U Sagittae.
MANZOORI D. and GOZALIASL G.
Abstract (from CDS):
The O-C curve of the eclipsing binary U Sagittae was analyzed using the Kalimeris method. A period decrease was indicated by this curve. The observed period P(E) and its rate of change dP/dE as a function of time were calculated. To reveal any cyclic period variations, the P(E) function was subjected to Fourier analysis. A cyclic period change of 9.5 yr duration with amplitude ΔP=6.385x10–6 days was obtained. The mass transfer rate for the system was calculated, and these results have been used to discuss period variability.
Abstract Copyright: ∼
Journal keyword(s): Stars: Binaries: Eclipsing - Stars: Individual: Constellation Name: U Sagittae
Simbad objects: 3
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