Averting the magnetic braking catastrophe on small scales: disk formation due to Ohmic dissipation Corrigendum
Averting the magnetic braking catastrophe on small scales: disk formation due to Ohmic dissipation Corrigendum
复制标题
避免小规模的磁制动灾难：欧姆耗散导致的圆盘形成勘误表
DOI：
10.1051/0004-6361/201015700
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发表时间：
2010
影响因子：
6.5
通讯作者：
S. Basu
中科院分区：
文献类型：
--
作者：
Wolf B. Dapp;S. Basu
我们进行了轴对称电阻MHD计算，证明尽管有磁制动，离心盘确实可以在0级物体周围形成。我们跟踪恒星前核心的演变，一直到接近恒星的密度和恒星半径。在磁冻结下，磁芯被制动，磁盘的形成被抑制，而欧姆耗散使得磁制动在第一磁芯内无效。与观测结果一致，没有证据表明在0类物体周围存在大磁盘，生成的磁盘在∂中形成
We perform axisymmetric resistive MHD calculations that demonstrate that centrifugal disks can indeed form around Class 0 objects despite magnetic braking. We follow the evolution of a prestellar core all the way to near-stellar densities and stellar radii. Under fluxfreezing, the core is braked and disk formation is inhibited, while Ohmic dissipation renders magnetic braking ineffective within the first core. In agreement with observations that do not show evidence for large disks around Class 0 objects, the resultant disk forms in ∂