The R₂/R₁ size ratio versus the log of the stellar density for the CoRoT candidates in the IRa01 field, assuming k = 0. The dotted lines mark the densities of A to M type main-sequence hosts. The five filled dots are the candidates that survive both our cuts in impact parameter and secondary size. The two confirmed transiting hot Jupiters CoRoT1b and CoRoT4b are shown as yellow filled dots. Open circles are the candidates we have excluded using our cuts. Blue circles indicate sources which have been identified as blended EBs by the CoRoT team follow-up, and red circles are either unsettled cases in the CoRoT follow-up or systems identified as genuine EBs through their radial velocities. The four solid curves indicate R₂ =  [0.10,0.50,1.0,2.0]   R_Jup, assuming the main sequence mass-radius relation of Cox (2000) for the primary.