In the early 1960s, work on Brans–Dicke theory led Dicke to think about the early Universe, and with Jim Peebles he re-derived the prediction of a cosmic microwave background (having allegedly forgotten the earlier prediction of George Gamow and co-workers). Dicke, with David Todd Wilkinson and Peter G. Roll, immediately began building a Dicke radiometer to search for the radiation.
They were preceded by the accidental detection made by Arno Penzias and Robert Woodrow Wilson (also using a Dicke radiometer), who were working at Bell Labs near Princeton.[11][12] Nevertheless, Dicke's group made the second clean detection, and their theoretical interpretation of Penzias and Wilson's results showed that theories of the early universe had moved from pure speculation into well-tested physics.[13][14]
No, I did find revisions to his cosmology primer "First Three Minutes" that include CMBr (rev 3) and significance of anisotropies (rev 6 ), not a peer reviewed pub but in the OP period of interest.windy miller said:Let me know if you find it thanks.
The Cosmic Microwave Background (CMB) is the afterglow radiation from the Big Bang, filling the universe and providing a snapshot of the infant universe approximately 380,000 years after its formation. It is a nearly uniform field of microwave radiation that is isotropic, meaning it has the same intensity in all directions, with slight fluctuations that correspond to the density variations in the early universe.
The CMB is significant because it serves as a crucial piece of evidence for the Big Bang theory. It provides insights into the universe's early conditions, its composition, and the processes that led to the formation of large-scale structures. The tiny temperature fluctuations in the CMB are linked to the distribution of matter in the universe, allowing scientists to study its evolution and the parameters of cosmological models.
The prediction of 1 in 100,000 refers to the statistical likelihood of observing certain anomalies or fluctuations in the CMB that deviate from the expected uniformity. This prediction highlights the rarity of these anomalies and suggests that they could provide important clues about the underlying physics of the universe, such as inflationary models or the existence of other cosmic phenomena.
The fluctuations in the CMB were discovered through precise measurements conducted by satellite missions such as COBE (Cosmic Background Explorer) in the early 1990s, followed by WMAP (Wilkinson Microwave Anisotropy Probe) and Planck. These missions mapped the temperature variations in the CMB across the sky, revealing the subtle anisotropies that correspond to density variations in the early universe.
The fluctuations in the CMB have profound implications for our understanding of the universe. They provide evidence for the inflationary model of the early universe, help determine the universe's composition (including dark matter and dark energy), and allow for the calculation of fundamental cosmological parameters such as the Hubble constant and the curvature of space. These insights help refine our models of cosmic evolution and structure formation.