  Peer methods are a comprehensive class of time integrators offering numerous
degrees of freedom in their coefficient matrices that can be used to ensure
advantageous properties, e.g. A-stability or super-convergence. In this paper,
we show that implicit-explicit (IMEX) Peer methods are well-balanced and
asymptotic preserving by construction without additional constraints on the
coefficients. These properties are relevant when solving (the space
discretisation of) hyperbolic systems of balance laws, for example. Numerical
examples confirm the theoretical results and illustrate the potential of
IMEX-Peer methods.
