Period variations in SZ ARIETIS

Details Period variations in SZ ARIETIS Period variations in SZ ARIETIS

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.168..201s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 168, no. 2, June 1990, p. 201-207.

Astronomy and Astrophysics

Astrophysics

1

Eclipsing Binary Stars, Ephemeris Time, Light Curve, Aries Constellation, Least Squares Method, Periodic Variations, Triple Stars

Scientific paper

Results are presented of a detailed period study of the eclipsing binary system SZ Arietis, based on up-to-date collection of minima. A new period (P = 1.7175405 d) of the SZ Ari was found, and the period changes (with the new period) in different portions of the O-C diagram were estimated. The average period change (leaving out an unusual value) was estimated to be about 0.00006 d. The O-C diagram displayed a sinusoidal variation, indicating that the SZ Ari system may be a three-body system, having a period of nearly 66 years.

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