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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