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We present an analysis on the potential prevalence of mid infrared excessesin stars with and without planetary companions. Based on an extended databaseof stars detected with the ${\it WISE}$ satellite, we studied two stellarsamples: one with 236 planet hosts and another with 986 objects for whichplanets have been searched but not found. We determined the presence of anexcess over the photosphere by comparing the observed flux ratio at 22 $\mu$mand 12 $\mu$m ($f_{22}/f_{12}$) with the corresponding synthetic value, derivedfrom results of classical model photospheres. We found a detection rate of0.85$\%$ at 22 $\mu$m (2 excesses) in the sample of stars with planets and0.1$\%$ (1 detection) for the stars without planets. The difference of thedetection rate between the two samples is not statistically significant, aresult that is independent of the different approaches found in the literatureto define an excess in the wavelength range covered by ${\it WISE}$observations. As an additional result, we found that the ${\it WISE}$ fluxesrequired a normalisation procedure to make them compatible with synthetic data,probably pointing out a revision of the ${\it WISE}$ data calibration.

Infrared excesses in stars with and without planets using revised ${\it WISE}$ photometry