红外尘泡的研究进展和研究方法

发布时间：2018-01-06 18:37

本文关键词：红外尘泡的研究进展和研究方法　出处：《中国科学:物理学力学天文学》2017年09期 　论文类型：期刊论文

【摘要】：银道面红外巡天发现的一类壳状结构被称作"红外尘泡"(Infrared Dust Bubble),目前普遍认为它是由大质量恒星或星团形成时产生的电离氢区与周围中性介质相互作用形成的,电离氢区膨胀可能触发壳层分子气体中的新一代恒星形成.最初,尘泡被发现主要来自于红外波段的辐射,后来被证实与分子气体有较好的成协性.多波段地研究尘泡与恒星形成的关系是近几年来一个比较热门的课题.已有的观测研究表明,某些尘泡壳层环境中存在着丰富的恒星形成现象,这些恒星形成区与电离氢区的膨胀有着很好的相关性,与理论模型研究结果相符.然而,由于缺少确切的距离等信息,无法确定相互作用关系确实存在,或者说无法给出触发过程发生的确凿证据.本文,首先概要地总结了前人研究红外尘泡与恒星形成方面的重要结论;其次,归纳了研究红外尘泡与恒星形成方面的主要科学方法与手段;最后,总结前人的研究成果,讨论目前研究红外尘泡方面的不足之处,分析研究红外尘泡的发展趋势等.
[Abstract]:A kind of shell structure discovered by the infrared survey of silver surface is called "infrared dust bubble" infrared Dust Bubble. It is now widely believed that it is formed by the interaction of the ionized hydrogen region produced by the formation of massive stars or clusters with the surrounding neutral medium. The expansion of the ionized hydrogen region may trigger the formation of a new generation of stars in the shell molecular gas. Initially, the bubbles were found mainly from infrared radiation. It has been proved that there is a good association with molecular gas. The study of the relationship between bubble and star formation in multi-band is a hot topic in recent years. There are abundant star formation phenomena in some dust bubble shell environments. These star forming regions have good correlation with the expansion of ionization hydrogen region, which is consistent with the theoretical model results. Due to the lack of exact distance and other information, it is impossible to determine the existence of the interaction relationship, or to give the definitive evidence of the trigger process. Firstly, the important conclusions of previous researches on infrared bubble and star formation are summarized briefly. Secondly, the main scientific methods and means of studying infrared dust bubbles and star formation are summarized. Finally, this paper summarizes the previous research results, discusses the shortcomings of the present research on infrared dust bubbles, and analyzes the development trend of infrared dust bubbles.
【作者单位】：中国科学院国家天文台;
【基金】：中国科学院国家天文台青年人才基金国家重点基础研究发展计划(编号:2015CB857100) 国家自然科学基金(编号:1136300411403042)资助项目
【分类号】：P15
【正文快照】： 1引言尽管目前所发现的大质量恒星的数量比较少,但是其在星际介质的物理与化学变化过程中起着关键的作用.电离氢区(HII Region)[1,2]、恒星风[3,4]和超新星爆发[5,6]等为星际气体的演化提供了必要的动能.年轻的大质量恒星对周围的星际介质有着非常深远的影响,比如由电离氢区的

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