Cosmological Constant or Intergalactic Dust? Constraints from the Cosmic Far-Infrared Background

@inproceedings{Aguirre2000CosmologicalCO,
  title={Cosmological Constant or Intergalactic Dust? Constraints from the Cosmic Far-Infrared Background},
  author={Anthony Aguirre and Zolt{\'a}n Haiman},
  year={2000}
}
Recent observations of Type Ia supernovae (SNe) at redshifts 0 < z < 1 reveal a progressive dimming that has been interpreted as evidence for a cosmological constant of ΩΛ ~ 0.7. An alternative explanation of the SN results is an open universe with ΩΛ = 0 and the presence of 0.1 μm dust grains with a mass density of Ωdust ~ a few × 10-5 in the intergalactic (IG) medium. The same dust that dims the SNe absorbs the cosmic UV/optical background radiation around ~1 μm, and reemits it at far… CONTINUE READING

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Physica Scripta, Proceedings of the Nobel Symposium, Particle Physics and the Universe

  • Z Haiman, A Loeb, Apj, M G Hauser
  • Physica Scripta, Proceedings of the Nobel…
  • 1973