Tag Archive for: temperature anisotropies
A Poor Man’s CMB Primer: Cosmic Acoustics
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Before decoupling, photons and charged particles were in good thermal contact: though the primordial plasma might have varied in temperature…
A Poor Man’s CMB Primer: Bumps on a Blackbody
Astronomers Arno Penzias and Robert Wilson discovered the cosmic microwave background in 1965. They were not looking for it.They were…