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16 papers · 1 filter
Neel Temperature of Quasi-Low-Dimensional Heisenberg Antiferromagnets
C. Yasuda, S. Todo, K. Hukushima +4
The Néel temperature, , of quasi-one- and quasi-two-dimensional antiferromagnetic Heisenberg models on a cubic lattice is calculated by Monte Carlo simulations as a func…
Design and Performance of the Wide-Field X-Ray Monitor on Board the High-Energy Transient Explorer 2
Y. Shirasaki, N. Kawai, A. Yoshida +18
The Wide-field X-ray Monitor (WXM) is one of the scientific instruments carried on the High Energy Transient Explorer 2 (HETE-2) satellite launched on 2000 October 9. HETE-2 is an…
On the symmetry of commuting differential operators with singularities along hyperplanes
Kenji Taniguchi
We study the commutants of a Schrödinger operator whose potential function possesses inverse square singularities along some hyperplanes passing through the origin. It is shown tha…
The Most Likely Sources of High Energy Cosmic-Ray Electrons in Supernova Remnants
T. Kobayashi, Y. Komori, K. Yoshida +1
Evidences of non-thermal X-ray emission and TeV gamma-rays from the supernova remnants (SNRs) has strengthened the hypothesis that primary Galactic cosmic-ray electrons are acceler…
Order N Monte Carlo Algorithm for Fermion Systems Coupled with Fluctuating Adiabatical Fields
Nobuo Furukawa, Yukitoshi Motome
An improved algorithm is proposed for Monte Carlo methods to study fermion systems interacting with adiabatical fields. To obtain a weight for each Monte Carlo sample with a fixed…
Multi-band optical follow-up observations of GRB 020813 at KISO and Bisei observatories
Y. Urata, S. Nishiura, T. Miyata +9
Observations were made of the optical afterglow of GRB020813 (Fox, Blake & Price, 2002) with the KISO observatory 1.05 m Schmidt telescope and the Bisei astronomical observatory 1.…