The Black holes of a general two-dimensional dilaton gravity theory
Nov 23, 199327 pages
Published in:
- Phys.Rev.D 49 (1994) 2897-2908,
- Phys.Rev.D 51 (1995) 5967-5968 (erratum)
e-Print:
- gr-qc/9311008 [gr-qc]
DOI:
Report number:
- DF-IST-9-93,
- UATP-93-05
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Abstract: (arXiv)
A general dilaton gravity theory in 1+1 spacetime dimensions with a cosmological constant and a new dimensionless parameter , contains as special cases the constant curvature theory of Teitelboim and Jackiw, the theory equivalent to vacuum planar General Relativity, the first order string theory, and a two-dimensional purely geometrical theory. The equations of this general two-dimensional theory admit several different black holes with various types of singularities. The singularities can be spacelike, timelike or null, and there are even cases without singularities. Evaluation of the ADM mass, as a charge density integral, is possible in some situations, by carefully subtrating the black hole solution from the corresponding linear dilaton at infinity.Note:
- 27 pages (25 figures), LaTex, Lisbon preprint DF/IST-9.93 and Univ. of Algarve preprint UATP-93/05
- quantum gravity
- gravitation: dilaton
- dimension: 2
- cosmological constant
- field equations: solution
- black hole: mass
- mass: black hole
- general relativity
- Brans-Dicke model
- numerical calculations
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