  We study warped AdS$_3$ solutions in massive IIA supergravity preserving
$\mathcal{N}=(3,0)$ and $\mathcal{N}=(1,0)$ supersymmetry. We consider
solutions whose internal spaces decompose as an S$^3\times$S$^3$ fibration and
a interval over which the rest of the solution is foliated. We present
necessary and sufficient conditions for these solutions to exist, in terms of
systems of ordinary differential equations and find several new analytic and
numerical examples with internal spaces bounded between D-brane and O-plane
behaviors.

High Energy Physics - Theory