X-rays from the star-forming complex W40

The young stellar cluster illuminating the W40 HII region, one of the nearest massive star-forming regions, has been observed with the ACIS detector on board the Chandra X-ray...照亮W40电离氢区（HII region）的年轻恒星团——该电离氢区是距离地球较近的大质量恒星形成区之一——已借助搭载于钱德拉X射线设备的ACIS探测器（Advanced CCD Imaging Spectrometer）完成观测……