Additional push event syncing between Artifactory instances
Yes, you can set up push event-driven replication. Please note that while pull replication prepopulates remote repository in server A from a local repository in server B, push replication replicates between two local repositories. Once you set up a virtual repository it doesn't really matter because you'll have a single point of access anyway, but just something for you to be aware of. 

You can read more about push replication and pull replication in the user guide. Also, please find here a whitepaper on different replication topologies and a webinar on the same topic.