New AdS2 supergravity duals of 4d SCFTs with defects

We construct new families of $\text{AdS}_2 \times S^2 S^2$ solutions with 4 supercharges in Type II supergravities. show that subclasses these can be interpreted terms defect branes embedded 4d $\mathcal{N} = $ SYM, or orbifolds thereof. This is explicitly realised by showing the asymptote locally to $\text{AdS}_5 S^5/\mathbb{Z}_n$, IIB, its T-dual background, IIA. The latter a Gaiotto-Maldacena geometry on an intersection D4 and NS5 branes. extend IIA include D6 branes, interpret them as describing backreacted baryon vertices within 2$ CFTs living D4-NS5-D6 intersections. propose explicit quiver quantum mechanics which play role colour becoming flavour These quivers are used compute degeneracies ground states dual super conformal mechanics, shown agree holographic expressions.