We derive the constraints set by several experiments on the Chaplygin quartessence model. In this scenario, a single fluid component drives the Universe from a non-relativistic matter dominated phase to an accelerated expansion phase behaving, first, like dark matter and in a more recent epoch as dark energy. We consider current data from SNIa experiments, statistics of gravitational lensing, FR IIb radio galaxies and X-ray gas mass fraction in galaxy clusters. We obtain the confidence region on the two parameters of the model from a combined analysis of all the above tests. We find that the best fit occurs close to the ΛCDM limit (α = 0). The standard Chaplygin quartessence (α = 1) is also allowed by the data, but only at ~ 2σ level.
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