Cold black holes and conformal continuations

Details Cold black holes and conformal continuations Cold black holes and conformal continuations

2006-09-20

arxiv.org/abs/gr-qc/0609084v1

Int.J.Mod.Phys.D17:25-42,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

15 pages, latex

Scientific paper

10.1142/S0218271808011845

We study Einstein gravity minimally coupled to a scalar field in a static, spherically symmetric space-time in four dimensions. Black hole solutions are shown to exist for a phantom scalar field whose kinetic energy is negative. These ``scalar black holes'' have an infinite horizon area and zero Hawking temperature and are termed ``cold black holes'' (CBHs). The relevant explicit solutions are well-known in the massless case (the so-called anti-Fisher solution), and we have found a particular example of a CBH with a nonzero potential $V(\phi)$. All CBHs with $V(\phi) \not \equiv 0$ are shown to behave near the horizon quite similarly to those with a massless field. The above solutions can be converted by a conformal transformation to Jordan frames of a general class of scalar-tensor theories of gravity, but CBH horizons in one frame are in many cases converted to singularities in the other, which gives rise to a new type of conformal continuation.

Affiliated with

Also associated with

No associations

Rating

Cold black holes and conformal continuations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cold black holes and conformal continuations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cold black holes and conformal continuations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-350782