Preon stars: a new class of cosmic compact objects

@article{Hansson2005PreonSA,
  title={Preon stars: a new class of cosmic compact objects},
  author={Johan Hansson and Fredrik Sandin},
  journal={Physics Letters B},
  year={2005},
  volume={616},
  pages={1-7}
}

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References

SHOWING 1-10 OF 26 REFERENCES

Observations and implications of the ultrahigh-energy cosmic rays

cosmic rays around 6310 19 eV induced by the interaction of the particles with the 2.7-K primordial photons. However, recent experimental data have established that particles exist with energies

Non-baryonic dark matter: observational evidence and detection methods

The evidence for the existence of dark matter in the universe is reviewed. A general picture emerges, where both baryonic and non-baryonic dark matter is needed to explain current observations. In

An Introduction to the Study of Stellar Structure

EDDINGTON'S “Internal Constitution of the Stars” was published in 1926 and gives what now ranks as a classical account of his own researches and of the general state of the theory at that time. Since

Preon trinity—A schematic model of leptons, quarks and heavy vector bosons

Quarks, leptons and heavy vector bosons are suggested to be composed of stable spin-(1/2) preons, existing in three flavours, combined according to simple rules. Straightforward consequences of an

Are Gamma-Ray Bursts in Star-Forming Regions?

The optical afterglow of the gamma-ray burst GRB 970508 (z=0.835) was a few hundred times more luminous than any supernova. Therefore, the name "hypernova" is proposed for the whole GRB/afterglow

A New Extended Model of Hadrons

We propose that a strongly interacting particle is a finite region of space to which fields are confined. The confinement is accomplished in a Lorentz-invariant way by endowing the finite region with

Review of particle properties.

TLDR
This biennial Review summarizes much of Particle Physics using data from previous editions, plus 2205 new measurements from 667 papers, and features expanded coverage of CP violation in B mesons and of neutrino oscillations.

First-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters

WMAP precision data enable accurate testing of cosmological models. We find that the emerging standard model of cosmology, a flat Λ-dominated universe seeded by a nearly scale-invariant adiabatic