Effects of voids on the reconstruction of the equation of state of Dark Energy

. We show that the effect can start to be comparable with some of the other errors taken into account when analysing supernova data, depending strongly upon the low redshift cut-off used in the sample. For the supernova data alone, the error induced in the reconstruction of

w

is much larger than the percent level. When the Baryonic Acoustic Oscillations and the CMB data are included in the fit, the effect of the voids upon the determination of

w

is much lessened, but is not much smaller than some of the other errors taken into consideration when performing such fits.

95.36.+x

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