Black branes on the linear dilaton background

We show that the complete static black p-brane supergravity solution with a single charge contains two and only two branches with respect to behavior at infinity in the transverse space. One branch is the standard family of asymptotically flat black branes, and another is the family of black branes which asymptotically approach the linear dilaton background with antisymmetric form flux (LDB). Such configurations were previously obtained in the near-horizon near-extreme limit of the dilatonic asymptotically flat p-branes, and used to describe the thermal phase of field theories involved in the DW/QFT dualities and the thermodynamics of little string theory in the case of the NS5-brane. Here we show by direct integration of the Einstein equations that the asymptotically LDB p-branes are indeed exact supergravity solutions, and we prove a new uniqueness theorem for static p-brane solutions satisfying cosmic censorship. In the non-dilatonic case, our general non-asymptotically flat p-branes are uncharged black branes on the background $AdS_{p+2}\times S^{D-p-2}$ supported by the form flux. We develop the general formalism of quasilocal quantities for non-asymptotically flat supergravity solutions with antisymmetric form fields, and show that our solutions satisfy the first law of theormodynamics. We also suggest a constructive procedure to derive rotating asymptotically LDB brane solutions.Comment: 16 pages, revtex4, v2 - references added, "authors" metatag correcte

The black holes of topologically massive gravity

We show that an analytical continuation of the Vuorio solution to three-dimensional topologically massive gravity leads to a two-parameter family of black hole solutions, which are geodesically complete and causally regular within a certain parameter range. No observers can remain static in these spacetimes. We discuss their global structure, and evaluate their mass, angular momentum, and entropy, which satisfy a slightly modified form of the first law of thermodynamics.Comment: 10 pages; Eq. (15) corrected, references added, version to appear in Classical and Quantum Gravit

Non-asymptotically flat, non-AdS dilaton black holes

We show that previously known non-asymptotically flat static black hole solutions of Einstein-Maxwell-dilaton theory may be obtained as near-horizon limits of asymptotically flat black holes. Specializing to the case of the dilaton coupling constant $\alpha^2 = 3$, we generate from the non-asymptotically flat magnetostatic or electrostatic black holes two classes of rotating dyonic black hole solutions. The rotating dyonic black holes of the ``magnetic'' class are dimensional reductions of the five-dimensional Myers-Perry black holes relative to one of the azimuthal angles, while those of the ``electric'' class are twisted dimensional reductions of rotating dyonic Rasheed black strings. We compute the quasi-local mass and angular momentum of our rotating dyonic black holes, and show that they satisfy the first law of black hole thermodynamics, as well as a generalized Smarr formula. We also discuss the construction of non-asymptotically flat multi-extreme black hole configurations.Comment: Minor corrections. 2 references added. To appear in Physical Review

Linear dilaton black holes

We present new solutions to Einstein-Maxwell-dilaton-axion (EMDA) gravity in four dimensions describing black holes which asymptote to the linear dilaton background. In the non-rotating case they can be obtained as the limiting geometry of dilaton black holes. The rotating solutions (possibly endowed with a NUT parameter) are constructed using a generating technique based on the Sp(4,R) duality of the EMDA system. In a certain limit (with no event horizon present) our rotating solutions coincide with supersymmetric Israel-Wilson-Perjes type dilaton-axion solutions. In presence of an event horizon supersymmetry is broken. The temperature of the static black holes is constant, and their mass does not depend on it, so the heat capacity is zero. We investigate geodesics and wave propagation in these spacetimes and find superradiance in the rotating case. Because of the non-asymptotically flat nature of the geometry, certain modes are reflected from infinity, in particular, all superradiant modes are confined. This leads to classical instability of the rotating solutions. The non-rotating linear dilaton black holes are shown to be stable under spherical perturbations.Comment: 30 pages, 1 eps figure, 8 typos correcte

Trous noirs non asymptotiquement plats

Jury: Gérard Clément, Dmitri Gal'tsov, Marc Henneaux, Richard Kerner, Maurice Kibler, David Langlois et Paul Sorba.In the framework of string-inspired dilatonic gravity theories (from 4 to D space-time dimensions), we construct new non-asymptotically flat black hole or black brane solutions. For particular values of the dilatonic coupling constant, we generalize static solutions to rotating ones, using the target space isometry group. We compute their masses and their angular momentum using the modern approach to the computation of energy in General Relativity, the quasilocal formalism, and we check the agreement of these solutions with the first law of black hole thermodynamics. Finally, we study a new black hole family in the 2+1 dimensional theory of Topologically Massive Gravity.Dans le cadre de théories de la gravitation dilatonique inspirées des théories des cordes (de 4 à D dimensions d'espace-temps), nous construisons de nouvelles solutions trou noir ou branes noires non asymptotiquement plates. Pour certaines valeurs de la constante de couplage dilatonique, nous généralisons les trous noirs statiques à des trous noirs en rotation, en utilisant le groupe d'isométrie de l'espace cible. Nous calculons leurs masses et leurs moments angulaires en utilisant l'approche moderne au calcul de l'énergie en Relativité Générale, le formalisme quasilocal, et nous vérifions qu'ils satisfont à la première loi de la thermodynamique des trous noirs. Enfin, nous étudions une famille de trous noirs en Gravitation Topologiquement Massive à 2+1 dimensions

Trous noirs non asymptotiquement plats

Dans le cadre de théories de la gravitation dilatonique inspirées des théories des cordes (de 4 à D dimensions d'espace-temps), nous construisons de nouvelles solutions trou noir ou branes noires non asymptotiquement plates. Pour certaines valeurs de la constante de couplage dilatonique, nous généralisons les trous noirs statiques à des trous noirs en rotation, en utilisant le groupe d'isométrie de l'espace cible. Nous calculons leurs masses et leurs moments angulaires en utilisant l'approche moderne au calcul de l'énergie en Relativité Générale, le formalisme quasilocal, et nous vérifions qu'ils satisfont à la première loi de la thermodynamique des trous noirs. Enfin, nous étudions une famille de trous noirs en Gravitation Topologiquement Massive à 2 + 1 dimensionsLYON1-BU.Sciences (692662101) / SudocSTRASBOURG-Bib.Central Recherche (674822133) / SudocSudocFranceF

Three-dimensional Chern-Simons black holes

We construct black hole solutions to three-dimensional Einstein-Maxwell theory with both gravitational and electromagnetic Chern-Simons terms. These intrinsically rotating solutions are geodesically complete, and causally regular within a certain parameter range. Their mass, angular momentum and entropy are found to satisfy the first law of black hole thermodynamics. These Chern-Simons black holes admit a four-parameter local isometry algebra, which generically is sl(2, R) × R, and may be generated from the corresponding vacua by local coordinate transformations