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research
Is the CMB shift parameter connected with the growth of cosmological perturbations?
Authors
Basilakos
Bertschinger
+28Â more
Bond
Caldwell
Chevallier
Efstathiou
Gannouji
Gronwall
L. Perivolaropoulos
Liberato
Linder
Linder
Nesseris
Nesseris
Nesseris
Nesseris
Ozer
Peebles
Peebles
Perlmutter
Riess
S. Basilakos
S. Nesseris
Silveira
Spergel
Stabenau
Tegmark
Uzan
Wang
Wang
Publication date
1 January 2008
Publisher
'Wiley'
Doi
Cite
View
on
arXiv
Abstract
We verify numerically that in the context of general relativity (GR), flat models which have the same
Ω
m
\Omega_{\rm m}
Ω
m
​
and CMB shift parameter
R
R
R
but different
H
(
a
)
H(a)
H
(
a
)
and
w
(
a
)
w(a)
w
(
a
)
also have very similar (within less than 8%) growth of perturbations even though the dark energy density evolution is quite different. This provides a direct connection between geometrical and dynamical tests of dark energy and may be used as a cosmological test of general relativity.Comment: 6 pages, 3 figures, Accepted for publication in MNRA
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Last time updated on 01/04/2019