  We report on the infrared limit of the quenched lattice Landau gauge gluon
and ghost propagators as well as the strong coupling constant computed from
large asymmetric lattices. The infrared lattice propagators are compared with
the pure power law solutions from Dyson-Schwinger equations (DSE). For the
gluon propagator, the lattice data is compatible with the DSE solution. The
preferred measured gluon exponent being $\sim 0.52$, favouring a null zero
momentum propagator. The lattice ghost propagator shows finite volume effects
and, for the volumes considered, the propagator does not follow a pure power
law. Furthermore, the strong coupling constant is computed and its infrared
behaviour investigated.
