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Slide 2

X-Rays

X-Rays

Above left, our galaxy in X-rays, above, a supernova

Slide 3

The Observatory

The Observatory

Slide 4

Yohkoh SXT & Team

Yohkoh SXT & Team

Specs

1.54m focal length provides images from the .25 to 4.5 keV on a 1024x1024 cdc detector

Slide 5

Yohkoh Assembly

Yohkoh Assembly

Slide 6

http://www.sciamarchive.org/qpdf.cfm?ArticleID_CHAR=275CD5E3-0A46-47CE-85FE-83E874D98BB

http://www.sciamarchive.org/qpdf.cfm?ArticleID_CHAR=275CD5E3-0A46-47CE-85FE-83E874D98BB

Yohkoh X-Ray Pictures

Slide 7

The Corona

The Corona

Slide 8

Active Region

Active Region

Caused by strong magnetic fields that may span up to 500,000 square kilometers

Slide 9

Arcade of loops

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.”

Slide 10

X-Ray Bright Points

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

Slide 11

Corona Hole

Corona Hole

unipolar magnetic fields

high-speed solar wind streams originate in coronal holes

Slide 12

Interconnecting loops

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

Slide 13

Streamer

Streamer

The result of two opposed arcades resulting in explosions of x-rays from the sun

Slide 14

The MAXIM

The MAXIM

Slide 15

Streamer

Slide 16

Interferometry

Interferometry

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