NASA’s Chandra X-ray Observatory detects X-ray emissions from astronomical events.
to take pictures of broken bones inside the body. But instead of looking at the shadows produced by the bones stopping X-rays inside of a person, astronomers detect X-rays flying through space to get images of events such as black holes and supernovae.
On the left is the Cassiopeia A supernova. The image is about 19 light years across, and different colors in the image identify different chemical elements . The point at the center could be the neutron star remnant of the exploded star. On the right are the colliding ‘Antennae’ galaxies, which form a gigantic structure about 30,000 light years across. Chandra X-ray Center
My colleagues and I wanted to better understand what happens to the host galaxy once its black hole turns into an AGN. We picked one galaxy, Getting the ultimate Chandra resolution. From left to right, you see the raw image, the same image at a higher resolution and the image after applying a smoothing algorithm. G. Fabbiano
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