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16 papers · 1 filter
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…
Certain aperiodic automorphisms of unital simple projectionless C*-algebras
Yasuhiko Sato
Let be an inductive limit of finite cyclic groups and let be a unital simple projectionless C*-algebra with and with a unique tracial state, as constructed…
A generalized logarithmic module and duality of Coxeter multiarrangements
Takuro Abe
We introduce a new definition of a generalized logarithmic module of multiarrangements by uniting those of the logarithmic derivation and the differential modules. This module is r…
Flat rotation curves in Chern-Simons modified gravity
Kohkichi Konno, Toyoki Matsuyama, Yasuhiro Asano +1
We investigate the spacetime of a slowly rotating black hole in the Chern-Simons modified gravity. The long range feature of frame-dragging effect under the Chern-Simon gravity wel…
Vector chiral and multipolar orders in the spin-1/2 frustrated ferromagnetic chain in magnetic field
Toshiya Hikihara, Lars Kecke, Tsutomu Momoi +1
We study the one-dimensional spin-1/2 Heisenberg chain with competing ferromagnetic nearest-neighbor J_1 and antiferromagnetic next-nearest-neighbor J_2 exchange couplings in the p…
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…