New observations made by the Caltech-built Keck Cosmic Web Imager (KCWI) at the W. M. Keck Observatory in Hawaii reveal never before seen details of the dandelion supernova, and in 3D. This nebula, called Pa 30, was basically the leftover ejected material from the 1181 supernova
Using the KCWI, astronomers have, for the first time, mapped the location of those strange filaments within the supernova remnant in three dimensions, in addition to the speed at which they are streaming outward from the site of the blast.
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A standard image of the supernova remnant would be like a static photo of a fireworks display. KCWI gives us something more like a ‘movie’ since we can measure the motion of the explosion’s embers as they streak outward from the central explosion,” says Christopher Martin, Caltech professor of physics who led the team that built KCWI.
