Long-term future of extragalactic astronomy

@article{Loeb2001LongtermFO,
  title={Long-term future of extragalactic astronomy},
  author={Abraham Loeb},
  journal={Physical Review D},
  year={2001},
  volume={65},
  pages={047301}
}
  • A. Loeb
  • Published 30 July 2001
  • Physics
  • Physical Review D
If the current energy density of the universe is indeed dominated by a cosmological constant, then high-redshift sources will remain visible to us only until they reach some finite age in their rest-frame. The radiation emitted beyond that age will never reach us due to the acceleration of the cosmic expansion rate, and so we will never know what these sources look like as they become older. As a source image freezes on a particular time frame along its evolution, its luminosity distance and… 

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References

SHOWING 1-8 OF 8 REFERENCES

FROM THE OBSERVATORY

The war exacts its heavy toll of human life, and science is not spared. On our side we have not forgotten the loss of the physicist Mpseley, at the threshold of a great career ; now, from the enemy,

Black Holes, White Dwarfs, and Neutron Stars

Only for you today! Discover your favourite black holes white dwarfs and neutron stars book right here by downloading and getting the soft file of the book. This is not your time to traditionally go

Rev. Mod. Phys

  • Rev. Mod. Phys
  • 1989

Garnavich, et al., Astrophys

  • J., 509,
  • 1998

Phys. Rev. D, submitted

  • Phys. Rev. D, submitted
  • 2001

Mon. Not. R. Astr. Soc

  • Mon. Not. R. Astr. Soc
  • 1999

Astroph

  • & Space Sci., 24, 563
  • 1973