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Systematic Study of Gravitational Waves from Galaxy Merger
Takahiro Inagaki, Keitaro Takahashi, Shogo Masaki +1
A systematic study of gravitational waves from galaxy mergers, through N-body simulations, was performed. In particular, we investigated the relative importance of galaxy component…
Prospects for Direct Detection of Inflationary Gravitational Waves by Next Generation Interferometric Detectors
Sachiko Kuroyanagi, Takeshi Chiba, Naoshi Sugiyama
We study the potential impact of detecting the inflationary gravitational wave background by the future space-based gravitational wave detectors, such as DECIGO and BBO. The signal…
Halo Occupation Distribution of Massive Galaxies since z = 1
Y. Matsuoka, S. Masaki, K. Kawara +1
We present a clustering analysis of ~60,000 massive (stellar mass Mstar > 10^{11} Msun) galaxies out to z = 1 drawn from 55.2 deg2 of the UKIRT Infrared Deep Sky Survey (UKIDSS) an…
Search for the Sunyaev-Zel'dovich Effect in a Giant Radio Galaxy B1358+305
Masako YAMADA, Y. Fujita, H. Matsuo +1
We present results of an imaging observation of the central region of a giant radio galaxy B1358+305. The classical, standard scenario of Fanaroff-Riley II radio galaxies suggests…
Ghost Dark Matter
Tomonori Furukawa, Shuichiro Yokoyama, Kiyotomo Ichiki +2
We revisit ghost dark matter, the possibility that ghost condensation may serve as an alternative to dark matter. In particular, we investigate the Friedmann-Robertson-Walker (FRW)…