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- Waseda UniversityJP10 papers
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5 papers · 1 filter
Transitive X-ray spectrum and PeV gamma-ray cutoff in the M87 jet: Electron "Pevatron"
Mitsuru Honda, Yasuko S. Honda
We propose a modified version of the X-ray spectral index and an intrinsic cutoff frequency of inverse Compton radiation from the brightest knot of the M87 jet, in conjunction with…
Local Voids as the Origin of Large-angle Cosmic Microwave Background Anomalies: The Effect of a Cosmological Constant
Kaiki Taro Inoue, Joseph Silk
We explore the large angular scale temperature anisotropies in the cosmic microwave background (CMB) due to homogeneous local dust-filled voids in a flat Friedmann-Robertson-Walker…
Supersymmetric Intersecting Branes in Time-dependent Backgrounds
Nobuyoshi Ohta, Kamal L. Panigrahi
We construct a family of supersymmetric solutions in time-dependent backgrounds in supergravity theories. One class of the solutions are intersecting brane solutions and another cl…
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…
Realizing Scale-invariant Density Perturbations in Low-energy Effective String Theory
Zong-Kuan Guo, Nobuyoshi Ohta, Shinji Tsujikawa
We discuss the realization of inflation and resulting cosmological perturbations in the low-energy effective string theory. In order to obtain nearly scale-invariant spectra of den…