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Observations with eRosita Promise a Breakthrough in Our Understanding of the Energetic Universe

27 Oct 2019, 11:46 UTC
Observations with eRosita Promise a Breakthrough in Our Understanding of the Energetic Universe
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Astronomers are excited: the first images of the eRosita telescope launched in July reveal an impressive performance. After an extended commissioning phase, all seven X-ray telescope modules with their custom-designed CCD cameras have been observing the sky simultaneously since October 13. The first composite images show our neighboring galaxy, the Large Magellanic Cloud, and two interacting clusters of galaxies at a distance of about 800 million light years in remarkable detail."Now we can start reaping the fruits of more than ten years of work. We are all impressed by the beautiful first images from our telescope," enthuses Peter Predehl, Principal Investigator of eROSITA. "To meet our science goals we needed enough sensitivity to detect the most distant clusters of galaxies in the X-ray Universe over the whole sky, and resolve them spatially. These First Light images show that we can do exactly that, but we can go a lot further. The CCD cameras are state-of the art with superb spectral and timing resolution. The potential for new discoveries is immense." The eROSITA First Light images were obtained in a series of exposures of all seven telescope modules with a combined integration time of about one day for both the Large ...

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