A 3.5 year secondary period in the W UMa system TZ Bootis

Details A 3.5 year secondary period in the W UMa system TZ Bootis A 3.5 year secondary period in the W UMa system TZ Bootis

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26as...40..263h&link_type=abstract

Astronomy and Astrophysics Supplement Series, vol. 40, May 1980, p. 263-269.

Astronomy and Astrophysics

Astrophysics

29

Electrophotometry, Light Curve, Periodic Variations, Stellar Spectrophotometry, Variable Stars, Brightness, Cycles, Stellar Magnitude, Tables (Data), Ubv Spectra

Scientific paper

Photoelectric observations of TZ Bootis obtained in 1978 and 1979 are presented. They are compared with previous light curves of the system. The differences of the transit and occultation minima magnitudes vary with a period of 1260 days. The phenomena resemble a solar-like activity cycle. The period of the system has probably been constant in the last two decades.

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