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The study reports photometric and spectroscopic observations of two recentlyrecognised contact binary systems. Both systems show total eclipses andanalysis of the light curves indicate both have a very low mass ratios of lessthan 0.3. We derive absolute parameters from colour and distance basedcalibrations and show that although both have low mass ratios they are likelyto be in a stable orbit and unlikely to merge. In other respects both systemshave characteristics similar to other contact binaries with the secondarylarger and brighter than main sequence counterparts and we also find that thesecondary is considerably denser than the primary in both systems.

Photometric and Spectroscopic Study of Two Low Mass Ratio Contact Binary Systems: CRTS J225828.7-121122 and CRTS J030053.5+230139