55 citations · 128 across the 6 of their papers we have counts for
6 papers
Coronagraph Experiment on Dark-hole Control by Speckle Area Nulling Method
Masahito Oya, Jun Nishikawa, Masaaki Horie +7
In high-contrast imaging optical systems for direct observation of planets outside our solar system, adaptive optics with an accuracy of lambda/10,000 root mean square is required…
Unified 1-D Simulations of Gamma-Ray Line Emission from Type Ia Supernovae
P. A. Milne, A. L. Hungerford, C. L. Fryer +9
The light curves of Type Ia Supernovae (SN Ia) are powered by gamma-rays emitted by the decay of radioactive elements such as Ni and its decay products. These gamma-rays are…
Radioactivity of the Key Isotope 44Ti in SN 1987A
Yuko Motizuki, Shiomi Kumagai
We investigate radioactivity from the decay sequence of 44Ti in a young supernova remnant SN 1987A. We perform Monte-Carlo simulations of degradation of the nuclear lines to explai…
44Ti radioactivity in young supernova remnants: Cas A and SN 1987A
Yuko Motizuki, Shiomi Kumagai
We investigate radioactivity from the decay sequence of 44Ti in young supernova remnants (SNRs), Cassiopeia A (Cas A) and SN 1987A. It is shown by a linear analysis that ionization…
Gamma-Ray Signatures of Supernovae and Hypernovae
K. Nomoto, K. Maeda, Y. Mochizuki +4
We review the characteristics of nucleosynthesis and radioactivities in 'Hypernovae', i.e., supernovae with very large explosion energies ($ \gsim 10^{52} $ ergs) and their -ray…
Metal Rich Plasma at the Center Portion of the Cygnus Loop
Emi Miyata, H. Tsunemi, T. Kohmura +2
We observed the center portion of the Cygnus Loop supernova remnant with the ASCA observatory. The X-ray spectrum of the center portion was significantly different from that obtain…