Cherkis bow varieties and Coulomb branches of quiver gauge theories of   affine type $A$
  We show that Coulomb branches of quiver gauge theories of affine type $A$ are Cherkis bow varieties, which have been introduced as ADHM type description of moduli space of instantons on the Taub-NUT space equivariant under a cyclic group action. 
Hiraku Nakajima and Yuuya Takayama
math.RT hep-th math.AG