Measurement and Interpretation of Light Curves for the Eclipsing Binary Star System 44i-Bootes

Details Measurement and Interpretation of Light Curves for the Eclipsing Binary Star System 44i-Bootes Measurement and Interpretation of Light Curves for the Eclipsing Binary Star System 44i-Bootes

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20718607s&link_type=abstract

American Astronomical Society Meeting 207, #186.07; Bulletin of the American Astronomical Society, Vol. 37, p.1479

Astronomy and Astrophysics

Astrophysics

Scientific paper

We report recent and historical light cures for the eclipsing binary star 44i Bootes. Contemporary measurements were taken with a newly acquired 16m Ritchey-Chretien Telescope and SBIG ST-8 CCD camera. Data were analyzed with MIRA astrophotometry software. We calculate exact times of the primary or secondary eclipse. Comparing to historical data we show that the period of 44i continues to lengthen at a rate of 0.014 seconds per year. We interpret this in terms of mass transfer from the smaller to the larger star. We observed, over and above lengthening of the period, a 66-year oscillation.

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