Abstract
We present the simplest topological classification of wormholes and demonstrate that in open Friedmann models the genus nge 1 wormholes are stable and do not require the presence of exotic forms of matter, or any modification of general relativity. We show that such wormholes may also possess magnetic fields. It is found that when the wormhole gets into a galaxy or a surrounding region, it works as an accelerator of charged particles. If the income of the energy from radiation is small, such a wormhole works simply as a generator of synchrotron radiation. Estimates show that the threshold energy of such an accelerator may vary from sufficiently modest energies of the order of a few Gev, up to enormous energies of the Planckian order and even higher, depending on wormhole parameters.
Highlights
One of the great challenges of modern astrophysics is the origin of the observed high-energy cosmic-ray particles (HECRs) [1,2]
Mν π R2 4π r+2 is the portion of the spectral energy absorbed. In this manner we see that the system which consists of a galaxy and a wormhole endowed with a magnetic field works as an eternal accelerator
The maximal possible energy which can be reached in such an accelerator depends on two basic factors
Summary
One of the great challenges of modern astrophysics is the origin of the observed high-energy cosmic-ray particles (HECRs) [1,2]. In the present paper we suggest a new possible mechanism which may allow to accelerate charged particles till extremely high energies. Such a mechanism involves wormholes whose existence is predicted by general relativity and essentially by different extensions of gravity e.g., see [9,10,11,12,13]. It is natural to expect that magnetic fields (magnetic lines captured by wormholes) survive and may play the role of the seeds which generate magnetic fields in intergalactic medium This may explain the origin of observed magnetic fields in voids [16]. The two branches of such a spectrum correspond to two different such wormhole accelerators, while the position of the brake corresponds to the threshold energy for the nearest wormhole
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