ASTR 104 Lecture Notes - Lecture 30: Background Radiation

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8 Apr 2019
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Background radiation: background radiation from the big bang has been freely streaming across the. First detection: this cosmic background radiation (left over from the big bang) was first detected using a microwave antenna by penzias and wilson in 1965. Observations from space: to properly study the peak of this radiation, we must go into space, and as far away from earth as possible. Seeds in the young universe from which galaxies formed. How do the abundances of elements support the big bang theory: protons and neutrons combined to make long-lasting helium nuclei when the. Why is temperature so uniform: how can microwave temperature be nearly identical on opposite sides of the sky, regions now on opposite sides of the sky were close together before inflation pushed them far apart. Inflation can make structure by stretching tiny quantum ripples to enormous sizes: atom-sized to solar system-sized, the large-scale structure of universe started out as tiny quantum fluctuations before inflation happened.

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