星际气体云的磁震学：揭示隐藏的维度
星系天体物理
2018-06-06 v1
摘要
恒星与行星形成于致密的星际分子云内部，其形成过程印刻在云的三维（3D）形态上。由于投影效应以及难以测量其沿视线方向的延展，确定星际云的三维结构仍然具有挑战性。我们报告在孤立星际云 Musca 中探测到法向振动模，从而能够确定该云的三维物理尺度。发现 Musca 正在整体振动，具有侧视薄片而非先前所假设的长丝状物的特征模。我们通过三维磁流体动力学模拟重建了 Musca 的物理性质，重现了观测到的法向模并确认了薄片状形态。
引用
@article{arxiv.1805.03664,
title = {Magnetic Seismology of Interstellar Gas Clouds: Unveiling a Hidden Dimension},
author = {Aris Tritsis and Konstantinos Tassis},
journal= {arXiv preprint arXiv:1805.03664},
year = {2018}
}
备注
Accepted in Science, 24 pages, 8 figures. This is the author's version of the work. It is posted here by permission of the AAAS for personal use, not for redistribution. The definitive version was published in Science , (issue of May 11 2018), doi: 10.1126/science.aao1185