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Young Supernovae as Experimental Sites to Study Electron Acceleration Mechanism
keiichi Maeda
Radio emissions from young supernovae (~ 1 year after the explosion) show a peculiar feature in the relativistic electron population at a shock wave, where their energy distributio…
Probing Shock Breakout and Progenitors of Stripped-Envelope Supernovae through Their Early Radio Emissions
Keiichi Maeda
We study properties of early radio emission from stripped-envelope supernovae (those of type IIb/Ib/Ic). We suggest there is a sub-class of stripped-envelope supernovae in their ra…
Inflationary Dynamics with a Non-Abelian Gauge Field
Kei-ichi Maeda, Kei Yamamoto
We study the dynamics of the universe with a scalar field and an SU(2) non-Abelian Gauge (Yang-Mills) field. The scalar field has an exponential potential and the Yang-Mills field…
A theoretical color-velocity correlation for supernovae associated with gamma-ray bursts
Sharon Rapoport, Stuart A. Sim, Keiichi Maeda +4
We carry out the first multi-dimensional radiative transfer calculations to simultaneously compute synthetic spectra and light curves for models of supernovae driven by fast bipola…
Supernova 2008J: early time observations of a heavily reddened SN 2002ic-like transient
F. Taddia, M. D. Stritzinger, M. M. Phillips +19
We provide additional observational evidence that some Type Ia supernovae (SNe Ia) show signatures of circumstellar interaction (CSI) with hydrogen-rich material. Early phase optic…
Injection and Acceleration of Electrons at A Strong Shock: Radio and X-ray Study of Young Supernova 2011dh
Keiichi Maeda
In this paper, we develop a model for the radio and X-ray emissions from Type IIb Supernova (SN IIb) 2011dh in the first 100 days after the explosion, and investigate a spectrum of…