期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 370, 期 2, 页码 975-980出版社
OXFORD UNIV PRESS
DOI: 10.1111/j.1365-2966.2006.10524.x
关键词
MHD; stars : formation; ISM : clouds
Using 2D simulations, we study the formation of structures with a high-density contrast by magnetohydrodynamic waves in regions in which the ratio of thermal to magnetic pressure is small. The initial state is a uniform background perturbed by fast-mode wave. Our most significant result is that dense structures persist for far longer in a 2D simulation than in the 1D case. Once formed, these structures persist as long as the fast-mode amplitude remains high.
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