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Notes on video lecture:
Capturing Images of X-Ray Sources from Space
Notes taken by Edward Tanguay on January 12, 2015 (go to class or lectures)
Choose from these words to fill the blanks below:
bounced, Chandra, electronics, ricochet, 1999, hostile, iridium, star, rigors, Scorpius, bullets, penetrate, four, satellites, atmosphere, barrels, absorbed, parallel, focal, optical
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visible light can be                of a curved mirror and directed to a            point
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x-ray light, however, will be                  by the mirror
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will not bounce back to the focal point
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X-ray photons                    into the mirror in much the same way that                slam into a wall
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likewise, just as bullets                  when they hit a wall at a grazing angle, so too will X-rays ricochet off mirrors
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therefore X-ray telescopes must be constructed very different from                telescopes
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mirrors have to be precisely shaped and aligned nearly                  to incoming X-rays
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they look more like                than the familiar dish shape of optical telescopes
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x-ray telescope
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designed to observe remote objects in the X-ray spectrum
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the Earth's                      absorbs X-rays, X-ray observatories
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must therefore be mounted on high altitude rockets or artificial                      in order to get above the Earth's atmosphere
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mirrors, detectors, and                        that convey the information back to Earth must be able to
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withstand the              of a rocket launch
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operate in the                environment of space
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NASA's                X-ray Observatory
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most important X-ray astronomy mission to date
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launched on July 23,         
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         sets of nested mirrors
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the mirror surface was coated with               , a material more reflective than gold
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Sco X-1 (Scorpius X-1)
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roughly 9000 light years away in the constellation                 
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aside from the Sun, it is the strongest apparent source of X-rays in the sky
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is associated with an optically visible         , V818 Scorpii
The Nature of Images
Image Formation
Capturing Images of X-Ray Sources from Space