Sep 7, 2023
Japan launched an X-ray telescope more advanced than its peers
Posted by Genevieve Klien in categories: energy, space
Japan’s space agency has launched a rocket on September 6 at 7:42 PM EDT carrying a telescope that’s more advanced than NASA’s Chandra and other X-ray observatories already in orbit. The X-Ray Imaging and Spectroscopy Mission — or XRISM but pronounced as “crism” — is a mission led by JAXA (Japan Aerospace Exploration Agency) in collaboration with NASA and with contributions by the European Space Agency. Lia Corrales, a University of Michigan astronomer and mission participant, told The New York Times that XRISM represents “the next step in X-ray observations.”
The telescope is considered more powerful than its predecessors because of its tools. One of them, called Resolve, is a microcalorimeter spectrometer with the capability to measure tiny increases in temperature when X-rays hit its 6-by-6-pixel detector. It must operate in an environment that’s a fraction of a degree above absolute zero, enabled by a multistage mechanical cooling process inside its refrigerator-sized container with liquid helium. But so long as it’s working, the tool can measure each individual X-ray energy and can provide information on its source’s composition, motion and physical state.
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