X-ray data from NASA’s Chandra Observatory has been combined with the infrared data captured by the James Webb Space Telescope to create new composites that make the most of each’s data gathering capabilities.
has been combined with the infrared data captured by the James Webb Space Telescope to create new composites that make the most of each’s data gathering capabilities.
NASA explains that Chandra had already observed these sources and these composite images show how these two space-based telescopes complement each other. In each image, the X-rays from Chandra show higher-energy processes than the infrared view from JWST.Stephen’s Quintet, also known as Hickson Compact Group 92, exists about 290 million light-years away, and four of the five galaxies within the quintet are what NASA describes as locked in a cosmic dance of repeated close encounters.
“X-rays seen by Chandra come from superheated gas, individual exploded stars, and neutron stars, and black holes pulling material from companion stars,” NASA explains.“Webb’s infrared view shows the Cartwheel galaxy plus two smaller companion galaxies — not part of the collision — against a backdrop of many more distant galactic cousins.”SMACS 0723.3–7327, located about 4.2 billion light-years away, is a galaxy cluster that plays host to hundreds of individual galaxies.
“As some of the largest structures in the universe, [galaxy clusters] are filled with vast reservoirs of superheated gas that is seen only in X-ray light. In this image, the Chandra data reveals gas with temperatures of tens of millions of degrees, possessing a total mass of about 100 trillion times that of the Sun, several times higher than the mass of all the galaxies in the cluster,” NASA says.“Invisible dark matter makes up an even larger fraction of the total mass in the cluster.
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