Twisted modules for vertex algebras associated with vertex algebroids

We continue the work in our earlier paper, "On certain vertex algebras and their modules associated with vertex algebroids", J.Algebra 283 ( 2005), 367-398, to construct and classify graded simple twisted modules for the N-graded vertex algebras constructed by Gorbounov, Malikov and Schechtman from vertex algebroids. In addition, we determine the full automorphism groups of those N-graded vertex algebras in terms of the automorphism groups of the corresponding vertex algebroids.