| Summary: | Abstract We classify AdS3 solutions preserving N $$ \mathcal{N} $$ = (8, 0) supersymmetry in ten and eleven dimensions and find the local form of each of them. These include the AdS3×S6 solution of [1] and the embeddings of AdS3 into AdS4×S7, AdS5×S5, AdS7 /ℤ k ×S4 and its IIA reduction within AdS7. More interestingly we find solutions preserving the superconformal algebras f 4 , su 1 1 4 , osp 4 ∗ 4 $$ {\mathfrak{f}}_4,\mathfrak{su}\left(1,1|4\right),\mathfrak{osp}\left({4}^{\ast }|4\right) $$ on certain squashings of the 7-sphere. These solutions asymptote to AdS4×S7 and are promising candidates for holographic duals to defects in Chern-Simons matter theories.
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