Optical Spectroscopy in the CDFS

These spectra are optical follow-up observations of the X-ray sources detected in the 942 ks exposure of the Chandra Deep Field-South (CDFS) using FORS.这批光谱系利用FORS对钱德拉深场南（Chandra Deep Field-South, CDFS）942千秒曝光中探测到的X射线源所开展的光学后续观测。