The cosmic microwave background: observing directly the early universe

  title={The cosmic microwave background: observing directly the early universe},
  author={Paolo de Bernardis and Silvia Masi},
  booktitle={Other Conferences},
The Cosmic Microwave Background (CMB) is a relict of the early universe. Its perfect 2.725K blackbody spectrum demonstrates that the universe underwent a hot, ionized early phase; its anisotropy (about 80 µK rms) provides strong evidence for the presence of photon-matter oscillations in the primeval plasma, shaping the initial phase of the formation of structures; its polarization state (about 3 µK rms), and in particular its rotational component (less than 0.1 µK rms) might allow to study the… 


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