638 citations · 3k across the 66 of their papers we have counts for
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astro-ph2003★ 38 cited
Decaying Cold Dark Matter and the Evolution of the Cluster Abundance
Masamune Oguri, Keitaro Takahashi, Hiroshi Ohno +1
The cluster abundance and its redshift evolution are known to be a powerful tool to constrain the amplitude of mass fluctuations σ_8 and the mass density parameter Ω_m0. We study t…
astro-ph2003★ 3 cited
Probing dark energy with gamma-ray bursts
K. Takahashi, M. Oguri, K. Kotake +1
We propose a new method to use gamma-ray bursts (GRBs) as an alternative probe of the dark energy. By calibrating luminosity-variability and luminosity-lag time relations at low re…