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2 Very Unusual Coronal Mass Ejections! - SOHO Data

  • Kingz
  • uploaded: Apr 13, 2010
  • Hits: 120

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Caption: Not to be outdone by fall's explosion of color, the Sun issued a series of spectacular eruptions late last week. The first one (above, right), perplexed even seasoned solar physicists with its unique appearance. Coronal mass ejections (CMEs) tend to take on a shape that resembles a "lightbulb" (see e.g. this previous Hot Shot http://sohowww.nascom.nasa.gov/hotshots/2000_02_26/ ). The one last week, however, had more the shape of a dark keyhole, or a bulb on top of a column. The most likely explanation appears to be a combination of several coincidences - the chance juxtaposition of unrelated solar structures, enhanced by the image processing that removes the "background image", and a visual illusion that enhances the apparent contrast of the column.

A second CME (above, left) showed an unusually high level of structure, with a definite "twist" to the material being ejected. Although unusual, this is not a "one-of-a-kind" CME, though. Another event was a filament eruption, featured on the SOHO Pick of the Week page.
http://sohowww.nascom.nasa.gov/pickoftheweek/old/25oct2002/

http://sohowww.nascom.nasa.gov/hotshots/2002_10_28/



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2 comments

  • Kingz#

    Kingz April 14, 2010 6:01:35 PM CEST

    1 word: READ!quote NASA:Caption: Not to be outdone by fall's explosion of color, the Sun issued a series of spectacular eruptions late last week. The first one (above, right), perplexed even seasoned solar physicists with its unique appearance. Coronal mass ejections (CMEs) tend to take on a shape that resembles a "lightbulb" (see e.g. this previous Hot Shot http://sohowww.nascom.nasa.gov/hotshots/2000_02_26/ ). The one last week, however, had more the shape of a dark keyhole, or a bulb on top of a column. The most likely explanation appears to be a combination of several coincidences - the chance juxtaposition of unrelated solar structures, enhanced by the image processing that removes the "background image", and a visual illusion that enhances the apparent contrast of the column.A second CME (above, left) showed an unusually high level of structure, with a definite "twist" to the material being ejected. Although unusual, this is not a "one-of-a-kind" CME, though. Another event was a filament eruption, featured on the SOHO Pick of the Week page.http://sohowww.nascom.nasa.gov/pickoftheweek/old/25oct2002/http://sohowww.nascom.nasa.gov/hotshots/2002_10_28/

  • Willyumyum#

    Willyumyum April 14, 2010 1:26:17 PM CEST

    What, pray tell, is so strange about any of this?



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