This composite image of the Cassiopeia A (or Cas A) supernova remnant, released Jan. 8, 2024, contains X-rays from Chandra (blue), infrared data from Webb (red, green, blue), and optical data from Hubble (red and white). A study by the XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft has made the first-ever X-ray detections of chlorine and potassium in the wreckage.
X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand
The Cassiopeia A supernova remnant glows in X-ray, visible, and infrared light in this Jan. 8, 2024, image that combines data from NASA’s Chandra X-ray Observatory and Hubble, Webb, and Spitzer space telescopes. A study by the XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft has made the first-ever X-ray detections of chlorine and potassium from the wreckage; a paper about the result was published Dec. 4, 2025, in Nature Astronomy.
Read more about this discovery.
Image credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand
这张于2024年1月8日发布的复合图像展示了仙后座A（Cassiopeia A，简称Cas A）超新星遗迹。图中结合了钱德拉X射线天文台的X射线数据（蓝色）、韦伯望远镜的红外数据（红、绿、蓝）以及哈勃望远镜的光学数据（红色和白色）。XRISM（X射线成像与光谱任务）探测器的最新研究首次在这片遗迹中以X射线方式探测到氯和钾元素。
X射线: NASA/CXC/SAO; 可见光: NASA/ESA/STScI; 红外光: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; 影像处理: NASA/CXC/SAO/J. Schmidt and K. Arcand
在这幅由钱德拉、哈勃、韦伯与斯皮策太空望远镜数据合成的图像中，仙后座A超新星遗迹在X射线、可见光与红外波段同步闪耀。XRISM探测器的研究首次以X射线方式在爆炸遗迹中探测到了氯和钾，这一成果发表于2025年12月4日《自然·天文学》（Nature Astronomy）。
图片来源: X射线: NASA/CXC/SAO; 可见光: NASA/ESA/STScI; 红外光: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; 影像处理: NASA/CXC/SAO/J. Schmidt and K. Arcand
