论文标题
星形区域
Star Forming Regions
论文作者
论文摘要
自80年代以来，\ textit {einstein}天文台显示了年轻的恒星对象（ysos），在0.3---8 kev bandpass中散发出X射线，高达$ \ rm 10^3 $ - $ \ $ \ $ \ rm 10^4 $，比太阳及X射线发射高度可变。罗萨特（Rosat）证实了YSO和ASCA X射线排放的普遍性提供了证据，表明I类Ysos的排放在很大程度上起源于1-50 $ \ times 10^6 $ K的光学薄时等流量。这些内在的，意外的，意外的，意外的，属性和属性和\ textit的属性和textiT的变换能力{一个强大的工具，可追踪恒星形成过程，直至太阳周围的几千克从80年代的早期证据开始，以及他们提出的有趣的问题，我将总结所获得的结果以及它们如何影响我们目前对工作中物理过程的理解，我将讨论一些仍然开放的问题以及下一代X射线观测的可能途径将开放。
Since the '80s the \textit{Einstein} observatory has shown the Young Stellar Objects (YSOs), emit X-rays with luminosities, in the 0.3--8 keV bandpass, up to $\rm 10^3$--$\rm 10^4$ times than the Sun and that the X-ray emission is highly variable. ROSAT has confirmed the pervasiveness of X-ray emission from YSOs and ASCA has provided evidence that the emission of Class I YSOs is largely originating from optical thin-plasma at temperature of 1-50 $\times 10^6$ K. These intrinsic, unexpected, properties and the transformational capabilities of the \textit{Chandra} and \textit{XMM-Newton} observatories has made X-rays a powerful tool to trace the star formation process up to distance of a few kpc around the Sun. Starting from the early evidences of the '80s and the intriguing questions they raised, I will summarize the results obtained and how they have influenced our current understanding of physical processes at work and I will discuss some of the still open issues and some of the likely avenues that next generation X-ray observatory will open.
