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Photometric observations and analysis of twelve previously poorly studiedcontact binary systems is presented. All show total eclipses and have extremelylow mass ratios ranging from 0.072 to 0.15. Also, all show characteristics oforbital instability with mass ratios within the theoretical orbital instabilityrange. Although none demonstrate a significant O'Connell effect at least nineof the systems have other indicators of increased chromospheric and magneticactivity.

A Study of Twelve Potential Merger Candidate Contact Binary Systems