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- The University of TokyoJP265 papers
- National Astronomical Observatory of JapanJP117 papers
- Kyoto UniversityJP108 papers
- The University of OsakaJP103 papers
- Nagoya UniversityJP90 papers
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- Centre National de la Recherche ScientifiqueFR70 papers
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- National Institute for Materials ScienceJP48 papers
7 papers · 2 filters
Evolution of newly formed dust in Population III supernova remnants and its impact on the elemental composition of Population II.5 stars
Takaya Nozawa, Takashi Kozasa, Asao Habe +5
We investigate the evolution of dust formed in Population III supernovae (SNe) by considering its transport and processing by sputtering within the SN remnants (SNRs). We find that…
An Eight-Octant Phase-Mask Coronagraph
N. Murakami, R. Uemura, N. Baba +4
We present numerical simulations and laboratory experiments on an eight-octant phase-mask (EOPM) coronagraph. The numerical simulations suggest that an achievable contrast for the…
Microstructure and kinematics of H2O masers in the massive star forming region IRAS 06061+2151
K. Motogi, Y. Watanabe, K. Sorai +14
We have made multi-epoch VLBI observations of H2O maser emission in the massive star forming region IRAS 06061+2151 with the Japanese VLBI network (JVN) from 2005 May to 2007 Octob…
Structural effects of ice grain surfaces on the hydrogenation of CO at low temperatures
H. Hidaka, N. Miyauchi, A. Kouchi +1
Experiments on the hydrogenation of CO on crystalline and amorphous ice at 15 K were carried out to investigate the structural effects of the ice surface. The effective rate of H a…
Formation of hydrogen peroxide and water from the reaction of cold hydrogen atoms with solid oxygen at 10K
N. Miyauchi, H. Hidaka, T. Chigai +3
The reactions of cold H atoms with solid O2 molecules were investigated at 10 K. The formation of H2O2 and H2O has been confirmed by in-situ infrared spectroscopy. We found that th…
Extinction curves flattened by reverse shocks in supernovae
Hiroyuki Hirashita, Takaya Nozawa, Tsutomu T. Takeuchi +1
We investigate the extinction curves of young galaxies in which dust is supplied from Type II supernovae (SNe II) and/or pair instability supernovae (PISNe). Since at high redshift…