UBV photometry of EZ HYA. The beginning of mass transfer detected?

Details UBV photometry of EZ HYA. The beginning of mass transfer detected? UBV photometry of EZ HYA. The beginning of mass transfer detected?

Jan 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989aj.....97..207l&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 97, Jan. 1989, p. 207-215.

Other

5

Eclipsing Binary Stars, Light Curve, Stellar Mass Ejection, Stellar Spectrophotometry, Ubv Spectra, Color-Magnitude Diagram, Photoelectron Spectroscopy, Stellar Evolution, Symbiotic Stars

Scientific paper

Photoelectric observations of the short-period eclipsing binary EZ Hya are presented. Precise light curves were constructed and eight times of minimum light were derived. A detailed period study shows that this system started decreasing its period in 1970. This may be interpreted as the beginning of a mass-transfer phase. EZ Hya is another interesting W UMa system showing rapid activity of special interest for theories of evolution and structure of close binary systems.

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