89 citations · 209 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2010★ 54 cited
Redshift Drift in LTB Void Universes
Chul-Moon Yoo, Tomohiro Kai, Ken-ichi Nakao
We study the redshift drift, i.e., the time derivative of the cosmological redshift in the Lemaître-Tolman-Bondi (LTB) solution in which the observer is assumed to be located at th…
astro-ph2008★ 66 cited
Solving the Inverse Problem with Inhomogeneous Universes
Chul-Moon Yoo, Tomohiro Kai, Ken-ichi Nakao
We construct the Lemaître-Tolman-Bondi (LTB) dust universe whose distance-redshift relation is equivalent to that in the concordance cold dark matter (CDM) cosmological mode…
gr-qc2006★ 89 cited
Can inhomogeneties accelerate the cosmic volume expansion?
Tomohiro Kai, Hiroshi Kozaki, Ken-ichi nakao +2
If expanding and contracting regions coexist in the universe, the speed of the cosmic volume expansion can be accelerated. We construct simple inhomogeneous dust-filled universe mo…