Cosmological Simulations using GCMHD
Cosmological Simulations using GCMHD
复制标题
使用 GCMHD 进行宇宙学模拟
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Kinwah Wu
中科院分区：
文献类型：
--
作者：
D. Barnes;D. Kawata;Kinwah Wu
Radio observations of galaxy clusters show that the intracluster medium is permeated by μG magnetic fields. The origin and evolution of these cosmological magnetic fields is currently not well understood, and so their impact on the dynamics of structure formation is not known. Numerical simulations are required to gain a greater understanding and produce predictions for the next generation of radio telescopes.We present the galactic chemodynamics smoothed particle magnetohydrodynamics (SPMHD) code (GCMHD+), which is anMHDimplementation for the cosmological smoothed particle hydrodynamics code GCD+. The results of 1D, 2D and 3D tests are presented and the performance of the code is shown relative to the ATHENA grid code. GCMHD+ shows good agreement with the reference solutions produced by ATHENA. The code is then used to simulate the formation of a galaxy cluster with a simple primordial magnetic field embedded in the gas. A homogeneous seed field of 3.5 × 10−11 G is amplified by a factor of 103 during the formation of the cluster. The results show good agreement with the profiles found in other magnetic cluster simulations of similar resolution.
DOI：
10.1111/j.1365-2966.2011.19523.x
发表时间：
2011-07
影响因子：
4.8
作者：
A. Bonafede;K. Dolag;F. Stasyszyn;G. Murante;S. Borgani
通讯作者：
A. Bonafede;K. Dolag;F. Stasyszyn;G. Murante;S. Borgani