仙王座A中动力源的钱德拉X射线视图
The Chandra X-ray view of the power sources in Cepheus A
摘要：
大质量恒星形成区仙王座A的中心部分包含几个无线电源，表明存在多个外流现象，但尚未确定单个外流的驱动源。我们提出了一个高分辨率的钱德拉观测这一地区，显示存在明亮的X射线源，与活跃的前主序星一致，而强烈的吸收阻碍了检测不太明亮的物体。在仙王座A东西部H_2发射区连线上发现了一个新的源。该源可以是HH 168的驱动源。我们提出了一个方案有关的观察到的X射线和无线电发射。
英文摘要：
The central part of the massive star-forming region Cepheus A contains several radio sources which indicate multiple outflow phenomena, yet the driving sources of the individual outflows have not been identified. We present a high-resolution Chandra observation of this region that shows the presence of bright X-ray sources, consistent with active pre-main sequence stars, while the strong absorption hampers the detection of less luminous objects. A new source has been discovered located on the line connecting H_2 emission regions at the eastern and western parts of Cepheus A. This source could be the driving source of HH 168. We present a scenario relating the observed X-ray and radio emission.
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