Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Ishizaki, Wataru"'
Autor:
Tanaka, Shuta J., Ishizaki, Wataru
Pulsar wind nebulae (PWNe) are clouds of the magnetized relativistic electron/positron plasma supplied from the central pulsar. However, the number of radio-emitting particles inside a PWN is larger than the expectation from the study of pulsar magne
Externí odkaz:
http://arxiv.org/abs/2405.04110
Autor:
Ishizaki, Wataru, Ioka, Kunihito
We investigate parametric decay instability (PDI) of circularly polarized Alfv\'en wave into daughter acoustic wave and backward Alfv\'en wave in magnetically-dominated plasma, in which the magnetization parameter $\sigma$ (energy density ratio of ba
Externí odkaz:
http://arxiv.org/abs/2404.15689
Autor:
Bamba, Aya, Shibata, Shinpei, Tanaka, Shuta J., Mori, Koji, Uchida, Hiroyuki, Terada, Yukikatsu, Ishizaki, Wataru
Pulsar wind nebulae (PWNe) are one of the most energetic galactic sources with bright emissions from radio waves to very high-energy gamma-rays. We perform wideband X-ray spectroscopy of four energetic PWNe, N157B, PSR J1813-1749, PSR J1400-6325, and
Externí odkaz:
http://arxiv.org/abs/2207.10880
Autor:
Oka, Tomohiko, Ishizaki, Wataru
We analyze the GeV gamma-ray emission data from the vicinity of the supernova remnant (SNR) HB9 (G160.9+2.6) from the \textit{Fermi}-LAT 12-year observations to quantify the evolution of diffusive shock acceleration (DSA) in the SNR. In the vicinity
Externí odkaz:
http://arxiv.org/abs/2203.03240
We present a systematic study of particle transport by diffusion in young pulsar wind nebulae (PWNe). We selected nine bright sources that are well resolved with the Chandra X-ray Observatory. We analyzed archival data to obtain their radial profiles
Externí odkaz:
http://arxiv.org/abs/2201.09403
The gravitational wave event GW170817 with a macronova/kilonova shows that a merger of two neutron stars ejects matter with radioactivity including $r$-process nucleosynthesis. A part of the ejecta inevitably falls back to the central object, possibl
Externí odkaz:
http://arxiv.org/abs/2104.04708
A new component was reported in the X-ray counterpart to the binary neutron-star merger and gravitational wave event GW170817, exceeding the afterglow emission from an off-axis structured jet. The afterglow emission from the kilonova/macronova ejecta
Externí odkaz:
http://arxiv.org/abs/2104.04433
We present a new pulsar wind nebula (PWN) model solving both advection and diffusion of non-thermal particles in a self-consistent way to satisfy the momentum and energy conservation laws. Assuming spherically symmetric (1--D) steady outflow, we calc
Externí odkaz:
http://arxiv.org/abs/1809.09054
The observed radial profiles of the X-ray emission from Pulsar Wind Nebulae (PWNe) have been claimed to conflict with the standard one-dimensional (1-D) steady model. However, the 1-D model has not been tested to reproduce both the volume-integrated
Externí odkaz:
http://arxiv.org/abs/1703.05763
Autor:
Tanaka, Shuta J, Ishizaki, Wataru
Publikováno v:
Progress of Theoretical & Experimental Physics: PTEP; May2024, Vol. 2024 Issue 5, p1-12, 12p
