矮星系和IGM的磁化强度
Dwarf galaxies and the Magnetisation of the IGM
摘要：
随着LOFAR的运行，存在一个很好的机会来阐明一些宇宙学意义的问题。与任何明显的离散源无关的漫射射电同步辐射以及星系团中的法拉第旋转都表明星系际或星系团内介质（IGM，ICM）遍布着弱磁场，以及相对论粒子。粒子和场都必须是由活动星系核（AGN）或正常的恒星形成星系注入IGM的。后者的最佳候选者是星暴矮星系，在等级结构形成的框架中，它们必须大量存在。如果这是真的，人们应该能够在局部星暴或星暴后的矮星系周围探测到以前高度相对论性粒子的扩展同步加速器晕。有了LOFAR，人们应该很容易就能找到昏迷星团和更远的地方。
英文摘要：
With the operation of LOFAR, a great opportunity exists to shed light on a problemof some cosmological significance. Diffuse radio synchrotron emission not associated to any obvious discrete sources as well as Faraday rotation in clusters of galaxies both indicate that the intergalactic or intracluster medium (IGM, ICM) is pervaded by a weak magnetic field, along with a population of relativistic particles. Both, particles and fields must have been injected into the IGM either by Active Galactic Nuclei (AGN) or by normal starforming galaxies. Excellent candidates for the latter are starburst dwarf galaxies, which in the framework of hierarchical structure formation must have been around in large numbers. If this is true, one should be able to detect extended synchrotron halos of formerly highly relativistic particles around local starburst or post-starburst dwarf galaxies. With LOFAR, one should easily find these out to the Coma Cluster and beyond.
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。
