457 citations · 2.2k across the 35 of their papers we have counts for
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Entropy Function and Universality of Entropy-Area Relation for Small Black Holes
Rong-Gen Cai, Chiang-Mei Chen, Kei-ichi Maeda +2
We discuss the entropy-area relation for the small black holes with higher curvature corrections by using the entropy function formalism and field redefinition method. We show that…
Cosmological Density Fluctuations in Stochastic Gravity -- Formalism and Linear Analysis --
Yuko Urakawa, Kei-ichi Maeda
We study primordial perturbations generated from quantum fluctuations of an inflaton based on the formalism of stochastic gravity. Integrating out the degree of freedom of the infl…
The evolution of the peculiar Type Ia supernova SN 2005hk over 400 days
D. K. Sahu, Masaomi Tanaka, G. C. Anupama +6
photometry and medium resolution optical spectroscopy of peculiar Type Ia supernova SN 2005hk are presented and analysed, covering the pre-maximum phase to around 400 days…
Multi-Dimensional Simulations for Early Phase Spectra of Aspherical Hypernovae: SN 1998bw and Off-Axis Hypernovae
Masaomi Tanaka, Keiichi Maeda, Paolo A. Mazzali +1
Early phase optical spectra of aspherical jet-like supernovae (SNe) are presented. We focus on energetic core-collapse SNe, or hypernovae. Based on hydrodynamic and nucleosynthetic…
Probing the Explosion Mechanism of Supernovae by Radioactive Decay Gamma- and X-Rays
Keiichi Maeda
Gamma- and X-rays resulting from radioactive decays provide a potentially powerful tool to investigate the explosion physics of supernovae, since the distribution and the amount of…
Supernovae in Three-Dimension: A Link to Gamma-Ray Bursts
Keiichi Maeda
Observational consequences of a jet-driven supernova (SN) explosion model are presented. The results are compared in detail with optical observations of SN 1998bw associated with a…