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arXiv 1610.07544astro-ph.GA
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在银河系中面附近恒星和部分电离气体相对圆周运动的磁通量密度

Magnetic flux density from the relative circular motion of stars and partially ionized gas in the Galaxy mid-plane vicinity

Joanna Jałocha, Łukasz Bratek, Jan Pękala, Szymon Sikora, Marek Kutschera

摘要:

观测表明,在银河系的外部,恒星的自转相对于气体的自转要慢一些。这种差异可以归因于与星际磁场的相互作用。在一个简单的模型中,需要10微高斯量级的场,与观测值一致。这种巧合暗示了一种估算螺旋星系中磁场的工具。银河系中气体旋转的南北不对称性也可能是磁场的起源。

英文摘要:

Observations suggest a slower stellar rotation relative to gas rotation in the outer part of the Milky Way Galaxy. This difference could be attributed to an interaction with the interstellar magnetic field. In a simple model, fields of order 10 micro Gauss are then required, consistently with the observed values. This coincidence suggests a tool for estimating magnetic fields in spiral galaxies. A North-South asymmetry in the rotation of gas in the Galaxy could be of magnetic origin too.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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