242 citations · 341 across the 5 of their papers we have counts for
7 papers
CMBPol Mission Concept Study: Reionization Science with the Cosmic Microwave Background
Matias Zaldarriaga, Loris Colombo, Eiichiro Komatsu +6
We summarize existing constraints on the epoch of reionization and discuss the observational probes that are sensitive to the process. We focus on the role large scale polarization…
Harmonic Inpainting of the Cosmic Microwave Background Sky: Formulation and Error Estimate
Kaiki Taro Inoue, Paolo Cabella, Eiichiro Komatsu
We develop a new interpolation scheme, based on harmonic inpainting, for reconstructing the cosmic microwave background temperature data within the Galaxy mask from the data outsid…
Gravitational inflaton decay and the hierarchy problem
Yuki Watanabe, Eiichiro Komatsu
We study implications of the large-N species solution to the hierarchy problem, proposed by G. Dvali, for reheating of the universe after inflation. Dvali's proposal contains addit…
The bispectrum of galaxies from high-redshift galaxy surveys: primordial non-Gaussianity and non-linear galaxy bias
Emiliano Sefusatti, Eiichiro Komatsu
The greatest challenge in the interpretation of galaxy clustering data from any surveys is galaxy bias. Using a simple Fisher matrix analysis, we show that the bispectrum provides…
Reheating of the universe after inflation with f(phi)R gravity
Yuki Watanabe, Eiichiro Komatsu
We show that reheating of the universe occurs spontaneously in a broad class of inflation models with f(phi)R gravity (phi is inflaton). The model does not require explicit couplin…
Dark matter annihilation or unresolved astrophysical sources? Anisotropy probe of the origin of cosmic gamma-ray background
Shin'ichiro Ando, Eiichiro Komatsu, Takuro Narumoto +1
The origin of the cosmic gamma-ray background (CGB) is a longstanding mystery in high-energy astrophysics. Possible candidates include ordinary astrophysical objects such as unreso…