Let $A$ be $C^{\ast}$- Algebra and $X$ be a locally compact Hausdorff space and $C_{0}(X,A)$ be the set of all continuous functions from $X$ to $A$ vanishing at infinity. Define $f^{\ast}(t)={f(t)}^{\ast}$ (for $t\in X$). It is well known that ideals of $C_{0}(X,A)$ are of the form $\{ f\in C_{0}(X,A): f(x) \in I_x \; \forall x\in X \}$ where $I_x$ is closed ideal in $A$ for all $x$.

What’s known about the modular and primitive ideals of $C_{0}(X,A)$.

Any references or ideas?