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Preprints, Working Papers, ... Year : 2019

No obvious change in the number density of galaxies up to z ≈ 3.5

Abstract

The analysis of the cumulative count of sources of gamma-ray bursts as a function of their redshift strongly suggests that the number density of star-forming galaxies is roughly constant, up to z ≈ 3.5. The analysis of the cumulative count of galaxies in the Hubble Ultra Deep Field further shows that the overall number density of galaxies is constant as well, up to z ≈ 2 at least. Since ΛCDM does not seem able to cope with the age of old objects, both analyses were performed using a non-standard redshift-distance relationship.
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Dates and versions

hal-02019920 , version 1 (14-02-2019)

Identifiers

  • HAL Id : hal-02019920 , version 1

Cite

Yves-Henri Sanejouand. No obvious change in the number density of galaxies up to z ≈ 3.5. 2019. ⟨hal-02019920⟩
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