Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Machida, Mami"'
Autor:
Ohmura, Takumi, Machida, Mami
Non-radiating protons in the radio lobes have an essential role to form the jet morphology which is shown by recent radio and X-ray observations. However, since protons and electrons are not always in energy equilibrium due to weak Coulomb coupling,
Externí odkaz:
http://arxiv.org/abs/2310.02109
Forward shocks by radio jets, driven into the intracluster medium, are one of the indicators that can be used to evaluate the power of the jet. Meanwhile high-angular-resolution X-ray observations show the Mach numbers of powerful radio jets are smal
Externí odkaz:
http://arxiv.org/abs/2310.02105
Autor:
Totorica, Samuel R., Zenitani, Seiji, Matsukiyo, Shuichi, Machida, Mami, Sekiguchi, Kazuhiro, Bhattacharjee, Amitava
Publikováno v:
The Astrophysical Journal Letters, Volume 952, Number 1 (2023)
Magnetic reconnection is an important source of energetic particles in systems ranging from astrophysics to the laboratory. The large separation of spatiotemporal scales involved makes it critical to determine the minimum physical model containing th
Externí odkaz:
http://arxiv.org/abs/2309.08314
We present magnetohydrodynamic simulations of a jet-wind interaction in a galaxy cluster and the radio to gamma-ray and the neutrino emissions from this "head-tail galaxy". Our simulation follows the evolution of cosmic-ray (CR) particle spectra with
Externí odkaz:
http://arxiv.org/abs/2305.04795
Studies of the three-dimensional (3D) structures of galactic magnetic fields are now entering a new era, with broadband, highly sensitive radio observations and new analysis methods. To reveal the magnetic field configuration from the observed value
Externí odkaz:
http://arxiv.org/abs/2303.02703
Microquasar SS 433 located at the geometric center of radio nebula W50 is a suitable source for investigating the physical process of how galactic jets affect the surrounding interstellar medium (ISM). Previous studies have searched for evidence of t
Externí odkaz:
http://arxiv.org/abs/2301.13333
External galaxies often intervene in front of background radio sources such as quasars and radio galaxies. Linear polarization of the background emission is depolarized by Faraday rotation of inhomogeneous magnetized plasma of the intervening galaxie
Externí odkaz:
http://arxiv.org/abs/2207.07304
Autor:
Chibueze, James O., Sakemi, Haruka, Ohmura, Takumi, Machida, Mami, Akamatsu, Hiroki, Akahori, Takuya, Nakanishi, Hiroyuki, Parekh, Viral, van Rooyen, Ruby, Takeuchi, Tsutomu T.
Publikováno v:
Nature 593, 47-50 (2021). (https://www.nature.com/articles/s41586-021-03434-1)
Galaxy clusters are known to harbour magnetic fields. The nature of the intra-cluster magnetic fields remains an unresolved question. Intra-cluster magnetic field can be observed at the density contact discontinuity formed by cool and dense plasma ru
Externí odkaz:
http://arxiv.org/abs/2106.13049
The radio nebula W50 is a unique object interacting with the jets of the microquasar SS433. The SS433/W50 system is a good target for investigating the energy of cosmic-ray particles accelerated by galactic jets. We report observations of radio nebul
Externí odkaz:
http://arxiv.org/abs/2103.05578
The formation mechanism of the W50/SS433 complex has long been a mystery. We propose a new scenario in which the SS433 jets themselves form the W50/SS433 system. We carry out magnetohydrodynamics simulations of two-side jet propagation using the publ
Externí odkaz:
http://arxiv.org/abs/2102.06728