Zobrazeno 1 - 10
of 406
pro vyhledávání: '"Zhang, Jian Fu"'
Publikováno v:
A&A 691, A26 (2024)
Magnetohydrodynamic (MHD) turbulence plays a critical role in many key astrophysical processes such as star formation, acceleration of cosmic rays, and heat conduction. However, its properties are still poorly understood. We explore how to extract th
Externí odkaz:
http://arxiv.org/abs/2409.05739
Magnetic reconnection is a fundamental process for releasing magnetic energy in space physics and astrophysics. At present, the usual way to investigate the reconnection process is through analytical studies or first-principles numerical simulations.
Externí odkaz:
http://arxiv.org/abs/2405.12430
Since synchrotron polarization fluctuations are related to the fundamental properties of the magnetic field, we propose the polarization intensity variance to measure the Galactic interstellar medium (ISM) magnetization. We confirm the method's appli
Externí odkaz:
http://arxiv.org/abs/2404.16310
The theoretical prediction that magnetic reconnection spontaneously drives turbulence has been supported by magnetohydrodynamic (MHD) and kinetic simulations. While reconnection with externally driven turbulence is accepted as an effective mechanism
Externí odkaz:
http://arxiv.org/abs/2308.07572
We study the observable properties of compressible MHD turbulence covering different turbulence regimes, based on synthetic synchrotron observations arising from 3D MHD numerical simulations. Using the synchrotron emissivity and intensity, we first e
Externí odkaz:
http://arxiv.org/abs/2210.13615
Considering the spatially separated polarization radiation and Faraday rotation regions to simulate complex interstellar media, we study synchrotron polarization gradient techniques' measurement capabilities. We explore how to trace the direction of
Externí odkaz:
http://arxiv.org/abs/2106.03573
Due to the inevitable accumulation of the observed information in the direction of the line of sight, it is difficult to measure the local magnetic field of MHD turbulence. However, the correct understanding of the local magnetic field is a prerequis
Externí odkaz:
http://arxiv.org/abs/2004.05270
Based on statistical analysis of synchrotron polarization intensity, we study the anisotropic properties of compressible magnetohydrodynamic (MHD) turbulence. The second-order normalized structure function, quadrupole ratio modulus and anisotropic co
Externí odkaz:
http://arxiv.org/abs/2001.03276
This paper studies how to employ synchrotron emission gradient techniques to reveal the properties of the magnetic field within the interstellar media. Based on data cubes of three-dimensional numerical simulations of magnetohydrodynamic turbulence,
Externí odkaz:
http://arxiv.org/abs/1910.02378
We employ synthetic observations obtained with MHD simulations to study how to trace the distribution of turbulent magnetic fields using the synchrotron polarization gradient techniques suggested by Lazarian \& Yuen (2018). Both synchrotron polarizat
Externí odkaz:
http://arxiv.org/abs/1904.11939