Criticism of Study Detecting Ripples From Big Bang Continues to Expand

Sep 30, 2014

Image credit: Steffen Richter, Harvard University

By Dennis Overbye

Stardust got in their eyes.

In the spring a group of astronomers who go by the name of Bicep announced that they had detected ripples in the sky, gravitational waves that were the opening notes of the Big Bang. The finding was heralded as potentially the greatest discovery of the admittedly young century, but some outside astronomers said the group had underestimated the extent to which interstellar dust could have contaminated the results — a possibility that the group conceded in its official report in June.

Now a long-awaited report by astronomers using data from the European Space Agency’s Planck satellite has confirmed that criticism, concluding that there was enough dust in Bicep’s view of the sky to produce the swirly patterns without recourse to primordial gravitational waves.

“We show that even in the faintest dust-emitting regions there are no ‘clean’ windows in the sky,” the Planck collaboration, led by Jean-Loup Puget of the Institut d’Astrophysique Spatiale in Orsay, France, wrote in a paper submitted to the journal Astronomy & Astrophysics and posted online Monday.


 

Read the full article by clicking the name of the source located below.

Leave a Reply

View our comment policy.