Dark matter component decaying after recombination: lensing constraints with Planck data

It has been recently suggested~\cite{Berezhiani:2015yta} that emerging tension between cosmological parameter values derived in high-redshift (CMB anisotropy) and low-redshift (cluster counts, Hubble constant) measurements can be reconciled in a model which contains subdominant fraction of dark matt...

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Bibliographic Details
Published in:arXiv.org 2016-09
Main Authors: Chudaykin, A, Gorbunov, D, Tkachev, I
Format: Article
Language:English
Subjects:
Anisotropy
Astronomical models
Confidence intervals
Constraint modelling
Cosmology
Dark matter
Hubble constant
Large scale structure of the universe
Red shift
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Summary:It has been recently suggested~\cite{Berezhiani:2015yta} that emerging tension between cosmological parameter values derived in high-redshift (CMB anisotropy) and low-redshift (cluster counts, Hubble constant) measurements can be reconciled in a model which contains subdominant fraction of dark matter decaying after recombination. We check the model against the CMB Planck data. We find that lensing of the CMB anisotropies by the large-scale structure gives strong extra constraints on this model, limiting the fraction as \(F
ISSN:2331-8422
DOI:10.48550/arxiv.1602.08121