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9 papers · 2 filters
Results of the search for inspiraling compact star binaries from TAMA300's observation in 2000-2004
TAMA Collaboration, T. Akutsu
We analyze the data of TAMA300 detector to search for gravitational waves from inspiraling compact star binaries with masses of the component stars in the range 1-3Msolar. In this…
Close-slow analysis for head-on collision of two black holes in higher dimensions: Bowen-York initial data
Hirotaka Yoshino, Tetsuya Shiromizu, Masaru Shibata
Scenarios of large extra dimensions have enhanced the importance for the study of black holes in higher dimensions. In this paper, we analyze an axisymmetric system of two black ho…
Positive energy theorem implies constraints on static steller models
Tetsuya Shiromizu, Hirotaka Yoshino
Using the positive energy theorem, we derive some constraints on static steller models in asymptotically flat spacetimes in a general setting without imposing spherical symmetry. W…
Asymptotic symmetries on Kerr--Newman horizon without anomaly of diffeomorphism invariance
Jun-ichirou Koga
We analyze asymptotic symmetries on the Killing horizon of the four-dimensional Kerr--Newman black hole. We first derive the asymptotic Killing vectors on the Killing horizon, whic…
New stable phase of non-uniform charged black strings
Umpei Miyamoto, Hideaki Kudoh
Non-uniform black strings coupled to a gauge field are constructed by a perturbative method in a wide range of spacetime dimensions. At the linear order of perturbations, we see th…
Black hole formation in the head-on collision of ultrarelativistic charges
Hirotaka Yoshino, Robert B. Mann
We study black hole formation in the head-on collision of ultrarelativistic charges. The metric of charged particles is obtained by boosting the Reissner-Nordström spacetime to the…