Soft X-ray Diffuse Background: ROSAT 1.5 keV All-Sky Map

1.5 keV diffuse background map from the ROSAT all-sky survey in the same projection as Figure 1. The image shows a similar structure to that at 3/4 keV. At 1.5 keV, the sky is even more dominated by the relatively smooth extragalactic background and a limited number of bright extended Galactic objects.

Credit: The Max Planck Institute for Extraterrestrial Physics, Snowden et al. 1995, ApJ, 454, 643

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