# nLab near-horizon geometry

### Context

#### Gravity

gravity, supergravity

## Spacetimes

black hole spacetimesvanishing angular momentumpositive angular momentum
vanishing chargeSchwarzschild spacetimeKerr spacetime
positive chargeReissner-Nordstrom spacetimeKerr-Newman spacetime

# Contents

## Idea

The spacetime geometry of a black hole or black brane close to the horizon.

## References

• Wikipedia, Near-horizon metric

• Hari K. Kunduri, James Lucietti, Classification of Near-Horizon Geometries of Extremal Black Holes (web)

That the near horizon geometry of the extremal? Reissner-Nordström black hole in $\mathcal{N}=2$ 4d supergravity in $AdS_2 \times S^2$ was observed in

That the near horizon geometry of black branes in 11-dimensional supergravity is anti de Sitter spacetime times some compact space is apparently due to

A decent account is in

The observation that the resulting isometry group is the bosonic body of one of the orthosymplectic super groups is due to

Last revised on May 10, 2018 at 08:44:28. See the history of this page for a list of all contributions to it.