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Multi band photometry and light curve analysis for two newly recognizedcontact binary systems, TYC 6995-813-1 and NSVS 13602901 are presented. Bothwere found to be of extreme low mass ratios 0.11 and 0.17, respectively. Thesecondary components of both systems show evidence of considerable evolutionwith elevated densities as well as both luminosity and radii well above theirmain sequence counterparts. Even in the absence of significant spot activity atleast one of the systems, TYC 6995-813-1, shows features of magnetic andchromospheric activity. TYC 6995-813-1 is also determined to be a potentialmerger candidate with its current separation near the theoretical instabilityseparation.

Photometric analysis of two extreme low mass ratio contact binary systems