${\text{AdS}}_2\times S^7$ solutions from D0 $-$ F1 $-$ D8 intersections

Abstract

We study an exhaustive analytic class of massive type IIA backgrounds preserving sixteen real supercharges and enjoying $\text{SL}(2,\mathbb{R})\times \text{SO}(8)$ bosonic symmetry. The corresponding geometry is described by ${\text{AdS}}_2\times S^7$ warped over a line, which turns out to emerge from taking the near-horizon limit of D0 $-$ F1 $-$ D8 intersections. By studying the singularity structure of these solutions we find the possible presence of localized O8/D8 sources, as well as of fundamental strings smeared over the $S^7$. Finally we discuss the relation between the aforementioned solutions and the known ${\text{AdS}}_7\times S^2$ class through double analytic continuation.

arXiv comment12 pages; v2: minor changes, references added

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• Searching for surface defect CFTs within AdS${}_3$
• AdS${}_2$ duals to ADHM quivers with Wilson lines
• New AdS${}_2$ supergravity duals of 4d SCFTs with defects
• Global half-BPS $Ad{S}_2\times S^6$ solutions in Type IIB
• Non-integrability in AdS${}_3$ vacua
• Spin-$2$ operators in AdS${}_2$/CFT${}_1$
• Mink${}_4\times S^2$ Solutions of 10 and 11 Dimensional Supergravity
• New AdS${}_3$/CFT${}_2$ pairs in massive IIA with $(0,4)$ and $(4,4)$ supersymmetries