Astrophysics (Index)About


(Background Imaging of Cosmic Extragalactic Polarization)
(survey to measure the polarization of the CMB)

BICEP2 is a survey of CMB polarization carried out at the South Pole Station. An earlier survey was called BICEP. The Keck Array and BICEP3 are follow-on surveys/telescopes at the South Pole pursuing the same goals. The terms also refer to the survey-specific telescopes used.

It was announced in early 2014 that BICEP2 detected B-mode (polarization modes) gravitational waves from the early universe, offering evidence of inflation, but further analysis concluded that dust within the Milky Way could produce such a signal, so the observation was inconclusive.

(survey,telescope,CMB,cosmology,South Pole,ground)
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primordial gravitational waves