The image, released Monday, combines visible-light data from the Hubble Space Telescope (yellow) and X-raydata from the Chandra X-ray Observatory (blue).
周一发布的图片结合了哈勃太空望远镜记录的可见光数据(黄色)和钱德拉X射线记录的X射线数据(蓝色)。
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They used data in the optical regime collected by the Hubble space telescope, as well as X-raydata collected by ESA's XMM-Newton space telescope to identify the active galaxies.
This image of NGC 6240 contains new X-raydata from Chandra (shown in red, orange, and yellow) that has been combined with an optical image from the Hubble Space Telescope originally released in 2008.