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The growth of density perturbations in the last ∼10 billion years from tomographic large-scale structure data

Abstract:

In order to investigate the origin of the ongoing tension between the amplitude of matter fluctuations measured by weak lensing experiments at low redshifts and the value inferred from the cosmic microwave background anisotropies, we reconstruct the evolution of this amplitude from z ∼ 2 using existing large-scale structure data. To do so, we decouple the linear growth of density inhomogeneities from the background expansion, and constrain its redshift dependence making use of a combination o...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1088/1475-7516/2021/10/030

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Role:
Author
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Name:
European Commission
Grant:
693024
Publisher:
IOP Publishing
Journal:
Journal of Cosmology and Astroparticle Physics More from this journal
Volume:
10
Issue:
2021
Article number:
030
Publication date:
2021-10-12
Acceptance date:
2021-08-21
DOI:
EISSN:
1475-7516
Language:
English
Keywords:
Pubs id:
1194000
Local pid:
pubs:1194000
Deposit date:
2021-09-09

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