Astronomy Without A Telescope Inconstant Supernovae?
Any discrepancies in Type 1a supernovae light curves need to be accounted for when we use them as ‘standard candles’ to estimate the nature of the universe. Credit: NASA.
Given the importance of Type 1a supernovae as the standard candles which demonstrate that the universe’s expansion is actually accelerating – we require a high degree of confidence that those candles really are standard.
A paper released on Arxiv, with a list of authors reading like a Who’s Who in cosmology and including all three winners of this year’s Nobel Prize in Physics, details an ultraviolet (UV) analysis of four Type 1a supernovae, three of which represent significant outliers from the standard light curve expected of Type 1a supernovae.(…)
Read the rest of Astronomy Without A Telescope – Inconstant Supernovae? (588 words)
© Steve Nerlich for Universe Today, 2011. | Permalink | No comment | Add to del.icio.us
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