Where Does the Cosmic Microwave Background Come From?

Jason Kendall
Jason Kendall
3.6 هزار بار بازدید - ماه قبل - We know that the universe
We know that the universe is filled with a background radiation that is a relic of the Big Bang. How was it discovered?  Who came up with the idea?  How do we observe it?  How do we know it's really there?  Where did it come from?

This is the sixth of the videos in my new series of Cosmology.  I'm going through Dr. Barbara Ryden's textbook "Introduction to Cosmology".  If you follow along, you'll get a full upper-division undergraduate course in Cosmology.  I used this textbook at William Paterson University.

This course will cover the current state of the science of Cosmology.  To follow along, it'll be a good idea for you to ge to know your calculus.  Here are the topics of this video:

Introductory Cosmology
Chapter 02: Fundamental Observations
Section 05: Cosmic Microwave Background

Some things covered:
The Nature of Photons.
Blackbody Radiation.
An overlooked origin story to the CMB, starring: Ralph Alpher, Robert Hermann, George Gamove, Arno Penzias, Robert Wilson, and Robert Dicke.
COBE, WMAP, and Planck CMB Missions.
The origin of the CMB from Quark-Anti-Quark soup to the epochs of Recombination and Decoupling.

Alpher–Bethe–Gamow paper: https://en.wikipedia.org/wiki/Alpher%...
Ralph Alpher: https://en.wikipedia.org/wiki/Ralph_A...
Setting the Record Straight: https://pubs.aip.org/physicstoday/art...
More on Setting the Record Straight:
https://pubs.aip.org/physicstoday/art...
Alpher and Hermann's 1948 work: https://www.nature.com/articles/162774b0
Remarks on the Evolution of the Expanding Universe: https://journals.aps.org/pr/abstract/...
FIRAS Images: https://lambda.gsfc.nasa.gov/product/...
Measurement of the Cosmic Microwave Background Spectrum by the COBE FIRAS Instrument: https://ui.adsabs.harvard.edu/abs/199...
What I saw at the AAS:
Cosmology and the Cosmic Background Explorer Results: https://ui.adsabs.harvard.edu/abs/199...
COBE AAS poster papers: https://heasarc.gsfc.nasa.gov/docs/he...
Observing the Big Bang: https://ui.adsabs.harvard.edu/abs/199...
A Journey of Light Through Space and Time: https://www.jpl.nasa.gov/images/pia16...

Textbook: Goodreads: introduction-to-cosmology

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