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Re: fuagf post# 165960

Thursday, 02/16/2012 5:17:06 AM

Thursday, February 16, 2012 5:17:06 AM

Post# of 575128
Visible echoes reprise 19th century spectacle

LEFTOVER LIGHT
After analyzing light echoes left over from an eruption of the binary star Eta Carinae more than 150 years ago, scientists suggest the spectacle was created by an explosion rather than an energetic stellar wind.

Light from long-ago stellar eruption holds clues to its cause
February 15th, 2012
http://www.sciencenews.org/view/generic/id/338471/title/Visible_echoes_reprise_19th_century_spectacle [no comments yet]


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Light echoes cause rethink of supernova imposter

Light echoes from an explosion in the ? Carinae star system bounced off dust clouds in the area of the box, reaching Earth almost 200 years later than the rest of the light.
Spectra cast doubt on the cause of a nineteenth-century stellar eruption.
http://www.nature.com/news/light-echoes-cause-rethink-of-supernova-imposter-1.10033 [no comments yet]




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