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Subaru FOCAS Spectroscopic Observations of High-Redshift Supernovae
Tomoki Morokuma, Kouichi Tokita, Christopher Lidman +30
We present spectra of high-redshift supernovae (SNe) that were taken with the Subaru low resolution optical spectrograph, FOCAS. These SNe were found in SN surveys with Suprime-Cam…
Search for VHE gamma rays from SS433/W50 with the CANGAROO-II telescope
Sei. Hayashi, F. Kajino, T. Naito +48
SS433, located at the center of the supernova remnant W50, is a close proximity binary system consisting of a compact star and a normal star. Jets of material are directed outwards…
CANGAROO-III search for TeV Gamma-rays from two clusters of galaxies
R. Kiuchi, M. Mori, G. V. Bicknell +47
Because accretion and merger shocks in clusters of galaxies may accelerate particles to high energies, clusters are candidate sites for the origin of ultra-high-energy (UHE) cosmic…
Spectropolarimetry of Extremely Luminous Type Ia Supernova 2009dc: Nearly Spherical Explosion of Super-Chandrasekhar Mass White Dwarf
Masaomi Tanaka, Koji S. Kawabata, Masayuki Yamanaka +8
We present the first spectropolarimetric observations of a candidate of super-Chandrasekhar mass Type Ia supernova (SN): SN 2009dc. The observations were performed at 5.6 and 89.5…
A massive star origin for an unusual helium-rich supernova in an elliptical galaxy
K. S. Kawabata, K. Maeda, K. Nomoto +6
The unusual helium-rich (type Ib) supernova SN 2005E is distinguished from any supernova hitherto observed by its faint and rapidly fading light curve, prominent calcium lines in l…