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The integrated Sachs-Wolfe imprints of cosmic superstructures: a problem for ΛCDM

Abstract:

A crucial diagnostic of the \Lambda CDM cosmological model is the integrated Sachs-Wolfe (ISW) effect of large-scale structure on the cosmic microwave background (CMB). The ISW imprint of superstructures of size \sim100\;h^{-1} Mpc at redshift $z\sim0.5$ has been detected with $>4\sigma$ significance, however it has been noted that the signal is much larger than expected. We revisit the calculation using linear theory predictions in \Lambda CDM cosmology for the number density of superstru...

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Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Theoretical Physics
Role:
Author
Journal:
JCAP06(2012)042
Volume:
2012
Issue:
6
Pages:
042-042
Publication date:
2011-09-19
DOI:
EISSN:
1475-7516
ISSN:
1475-7516
URN:
uuid:b16429b0-05c2-49e3-94b6-0a9078eb0fab
Source identifiers:
180093
Local pid:
pubs:180093
Language:
English
Keywords:

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