383 citations · 3.2k across the 50 of their papers we have counts for
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astro-ph1997★ 383 cited
Gravitational Waves from Coalescing Black Hole MACHO Binaries
Takashi Nakamura, Misao Sasaki, Takahiro Tanaka +1
If MACHOs are black holes of mass about 0.5 solar mass, they must have been formed in the early universe when the temperature was about 1 GeV. We estimate that in this case in our…
astro-ph1997★ 248 cited
Cosmology with x-matter
Takeshi Chiba, Naoshi Sugiyama, Takashi Nakamura
Motivated by the possibility of where and are the Hubble parameter and the age of the universe, respectively, we investigate the cosmology including x-matt…