An international team of researchers, including researchers from the Space Research Institute in Graz, have published a study in "Nature Astronomy" about the discovery of a star that has been strongly contaminated with calcium during the supernova explosion of its partner. It is the first time that such a double-star system could be found in the remains of a supernova by superposition of observations with terrestric and space telescopes.
(Image: Superposition of observations with the Chandra space telescope, XMM-Newton (blue, green) and the Spitzer space telescope and WISE (red); © NASA/JPL-Caltech/UCLA)
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