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We report some new exact instantons in general relativity. These solutionsare K\"ahler and fall into the symmetry classes of Bianchi types VI0 and VII0,with matter content of a stiff fluid. The qualitative behaviour of thesolutions is presented, and we compare it to the known results of thecorresponding self-dual Bianchi solutions. We also give axisymmetric BianchiVII0 solutions with an electromagnetic field.Comment: latex, 15 pages with 3 eps figure

Some exact non-vacuum Bianchi VI 0 and VII 0 instantons

Some exact non-vacuum Bianchi VI ₀ and VII ₀ instantons