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12 papers · 2 filters
On invisible plasma content in radio-loud AGNs: The case of TeV blazar Markarian 421
M. Kino, F. Takahara
Invisible plasma content in blazar jets such as protons and/or thermal electron-positron () pairs is explored through combined arguments of dynamical and radiative process…
Numerical Simulations of Equatorially-Asymmetric Magnetized Supernovae: Formation of Magnetars and Their Kicks
Hidetomo Sawai, Kei Kotake, Shoichi Yamada
A series of numerical simulations on magnetorotational core-collapse supernovae are carried out. Dipole-like configurations which are offset northward are assumed for the initially…
Possible time-variability of the fine-structure constant expected from the accelerating universe
Yasunori Fujii
We present a theoretical calculation on the time-variability of the fine-structure constant to fit the result of the recent precise analysis of the measurement of the QSO absorptio…
Apollo asteroids (1566) Icarus and 2007 MK6: Icarus family members?
K. Ohtsuka, H. Arakida, T. Ito +6
Although it is more complicated to search for near-Earth object (NEO) families than main belt asteroid (MBA) families, since differential orbital evolution within a NEO family can…
Large Kinetic Power in FRII Radio Jets
H. Ito, M. Kino, N. Kawakatu +2
We investigate the total kinetic powers (L_{j}) and ages (t_{age}) of powerful jets of four FR II radio sources (Cygnus A, 3C 223, 3C 284, and 3C 219) by the detail comparison of t…
Moon Shadow by Cosmic Rays under the Influence of Geomagnetic Field and Search for Antiprotons at Multi-TeV Energies
The Tibet AS Gamma Collaboration, M. Amenomori
We have observed the shadowing of galactic cosmic ray flux in the direction of the moon, the so-called moon shadow, using the Tibet-III air shower array operating at Yangbajing (43…