XRayOpt

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Unformatted text preview: 100’s of free ppt’s from www.pptpoint.com library X-Rays Above left, our galaxy in X-rays, above, a supernova The Observatory Yohkoh SXT & Team • Specs • 1.54m focal length provides images from the . 25 to 4.5 keV on a 1024x1024 cdc detector Yohkoh Assembly Yohkoh X-Ray Pictures http://www.sciamarchive.org/qpdf.cfm?ArticleID_CHAR=275CD5E3-0A46-47CE-85FE-83E874D98BB The Corona Active Region • Caused by strong magnetic fields that may span up to 500,000 square kilometers Arcade of loops “An "arcade" is a system of magnetic loops organized into an elongated cylindrical formation. Often such an arcade will result from a slowly-developing solar flare or a coronal mass ejection (or both). The bright arcade may persist for days or longer.” X-Ray Bright Points • These occur anywhere on the Sun at opposition of the active regions. • Caused by magnetic fields that are sucked down into the photosphere Corona Hole • unipolar magnetic fields • high-speed solar wind streams originate in coronal holes Interconnecting loops • large-scale magnetic loops connect two active regions • "emerging flux": magnetic loops push their way through the photosphere and appear in the corona Streamer • The result of two opposed arcades resulting in explosions of x-rays from the sun The MAXIM Interferometry Below: New Mexico’s Very Large Array Above: Hawaii’s twin Keck observatories The MAXIM MAXIM ...
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XRayOpt - 100’s of free ppt’s from www.pptpoint.com...

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