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arXiv 1603.04722astro-ph.GA
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恒星形成星系中大范围尺度的磁场

Magnetic fields on a wide range of scales in star-forming galaxies

George Heald, Anna Williams, Sarrvesh S. Sridhar

摘要:

星系演化的一个关键因素是恒星形成周期。磁场研究的最新进展揭示了恒星形成与其对磁化星际介质(ISM)小尺度结构的影响之间的密切联系。在这篇文章中,我们描述了现代一代的射电望远镜是如何被用来探测物理的ISM通过敏感的气体和磁场的多波长调查,从内部恒星形成盘和向外到星系的郊区,大规模的磁场也可能发挥关键作用。我们强调独特的开拓性努力,以执行和科学地利用SKA将定期进行的大规模调查。展望未来,我们描述了计划使用平方公里阵列(SKA)和它的探路者,以获得重要的新的见解,星系演化的宇宙历史。

英文摘要:

A key ingredient in the evolution of galaxies is the star formation cycle. Recent progress in the study of magnetic fields is revealing the close connection between star formation and its effect on the small-scale structure in the magnetized interstellar medium (ISM). In this contribution we describe how the modern generation of radio telescopes is being used to probe the physics of the ISM through sensitive multiwavelength surveys of gas and magnetic fields, from the inner star forming disk and outward into the galaxy outskirts where large-scale magnetic fields may also play a key role. We highlight unique pioneering efforts towards performing and scientifically exploiting large-scale surveys of the type that the SKA will undertake routinely. Looking to the future, we describe plans for using the Square Kilometre Array (SKA) and its pathfinders to gain important new insights into the cosmic history of galaxy evolution.

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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