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13 papers · 1 filter
A Theoretical Light-Curve Model for the 1999 Outburst of U Scorpii
Izumi Hachisu, Mariko Kato, Taichi Kato +1
A theoretical light curve for the 1999 outburst of U Scorpii is presented in order to obtain various physical parameters of the recurrent nova. Our U Sco model consists of a very m…
Non-Equilibrium Steady States and Transport in the Classical Lattice Theory
Kenichiro Aoki, Dimitri Kusnezov
We study the classical non-equilibrium statistical mechanics of scalar field theory on the lattice. Steady states are analyzed near and far from equilibrium. The bulk thermal condu…
Bulk Properties of Anharmonic Chains in Strong Thermal Gradients: Non-Equilibrium Theory
Kenichiro Aoki, Dimitri Kusnezov
We study nonequilibrium properties of a one-dimensional lattice Hamiltonian with quartic interactions in strong thermal gradients. Nonequilibrium temperature profiles, T(x), are fo…
Metal-insulator transition of isotopically enriched neutron-transmutation-doped ^{70}Ge:Ga in magnetic fields
Michio Watanabe, Kohei M. Itoh, Youiti Ootuka +1
We have investigated the temperature dependence of the electrical conductivity sigma(N,B,T) of nominally uncompensated, neutron-transmutation-doped ^{70}Ge:Ga samples in magnetic f…
Direct Observation of Antiferro-Quadrupolar Ordering - Resonant X-ray Scattering Study of DyB2C2
K. Hirota, N. Oumi, T. Matsumura +4
Antiferroquadrupolar (AFQ) ordering has been conjectured in several rare-earth compounds to explain their anomalous magnetic properties. No direct evidences for AFQ ordering, howev…
Type Ia Supernova Progenitors, Environmental Effects, and Cosmic Supernova Rates
Ken'ichi Nomoto, Hideyuki Umeda, Izumi Hachisu +3
Relatively uniform light curves and spectral evolution of Type Ia supernovae (SNe Ia) have led to the use of SNe Ia as a ``standard candle'' to determine cosmological parameters, s…