Exploring the dark energy redshift desert with the Sandage-Loeb test

  title={Exploring the dark energy redshift desert with the Sandage-Loeb test},
  author={Pier-Stefano Corasaniti and D. Huterer and Alessandro Melchiorri},
  journal={Physical Review D},
We study the prospects for constraining dark energy at very high redshift with the Sandage-Loeb test--a measurement of the evolution of cosmic redshift obtained by taking quasar spectra at sufficiently separated epochs. This test is unique in its coverage of the 'redshift desert,' corresponding roughly to redshifts between 2 and 5, where other dark energy probes are unable to provide useful information about the cosmic expansion history. Extremely large telescopes planned for construction in… Expand

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