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5 papers · 1 filter
Energy and Momentum Transfer via Coulomb Frictions in Relativistic Two Fluids
Katsuaki Asano, Shizuo Iwamoto, Fumio Takahara
We numerically calculate the energy and momentum transfer rates due to Coulomb scattering between two fluids moving with a relative velocity. The results are fitted by simple funct…
Generation of a Fireball in AGN Hot Plasmas
Katsuaki Asano, Fumio Takahara
Motivated by relativistic jets observed in active galactic nuclei (AGN), we simulate outflows of electron-positron pairs strongly coupled with photons from normal electron-proton p…
Magnetic field generation by the Weibel instability at temperature gradients in collisionless plasmas
Yutaka Fujita, Tsunehiko N. Kato, Nobuhiro Okabe
The Weibel instability could be responsible for the generation of magnetic fields in various objects such as gamma-ray bursts, jets from active galactic nuclei, and clusters of gal…
Suzaku Reveals Helium-burning Products in the X-ray Emitting Planetary Nebula BD+303639
M. Murashima, M. Kokubun, K. Makishima +7
BD+303639, the brightest planetary nebula at X-ray energies, was observed with Suzaku, an X-ray observatory launched on 2005 July 10. Using the X-ray Imaging Spectrometer, the K-li…
Field-Induced Ferromagnetic Order and Colossal Magnetoresistance in La_{1.2}Sr_{1.8}Mn_2O_7: a ^{139}La NMR study
Y. Shiotani, J. L. Sarrao, Guo-qing Zheng
In order to gain insights into the origin of colossal magneto-resistance (CMR) in manganese oxides, we performed a ^{139}La NMR study in the double-layered compound La_{1.2}Sr_{1.8…