XMM-Newton 0.5 to 10.0keV X-ray sepectral color composite image of the Subaru/XMM-Newton Deep Field. The view gives an X-ray pseudo-color representation of all the sources, coded according to their X-ray hardness. Hard (shorter wavelength/higher energy) X-rays are expressed in blue and soft X-rays (longer wavlelength/less energetic) in red. The mosaic is composed of 7 partially overlapping pointings of the EPIC-pn camera and it maps the full extent of the SXDF. The total exposure time was over one hundred hours. The image of the central field approaches the confusion limit for the XMM-Newton in the soft (0.5-2 keV) band, while together these data form the largest contiguous area over which deep X-ray observations have been performed.

Image courtesy of Dr. Ian Stewart and Prof. Mike Watson (Leicester University/XMM-Newton Survey Science Centre) and the Euroepan Space Agency.