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Cosmic Microwave Background

Cosmic Microwave Background. Presentation by: Katria Kangas, Amber Marion & Grant Gabler. The Cosmic Microwave. Background Radiation. 1965- Arno Penzias & Robert Wilson discover/prove CMB existence. Everyday CMB affects. Basic Concepts. CMB: Cosmic Microwave Background.

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Cosmic Microwave Background

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  1. Cosmic Microwave Background Presentation by: Katria Kangas, Amber Marion & Grant Gabler

  2. The Cosmic Microwave Background Radiation 1965- Arno Penzias & Robert Wilson discover/prove CMB existence.

  3. Everyday CMB affects...

  4. Basic Concepts CMB: Cosmic Microwave Background Cosmic is the word used based upon the knowledge that radiation earliest source is the universe. It has been concluded that CMB is the cooled remnant of the hot Big Bang itself!

  5. Microwave is the term used because light travels in a range of wavelengths. It is the travelling of light through the concentrations of oscillating electric and magnetic field called Electromagnetic radiation- the same concepts of a microwave. Microwave is the name assigned to radiation between the infa-red and radio region. Faint signals are given out through the microwaves. With a detector one can detect them.

  6. Background is used because it is all around us. The noise clearly doesn’t come from any object nearby (stars or clouds in our Galaxy). One analogy is perceiving the universe as being filled with this background microwave photons.

  7. Connecting CMB to The Big Bang Three cornerstones to the Big Bang are: 1.) the blackbody nature of the CMB spectrum 2.) redshifting of distant galaxies 3.) the observed abundances of light elements indicating they were “cooked” at earlier times

  8. COBE satellite Cosmic Background Explorer 1990 COBE confirmed microwave background, supporting Big Bang theory.

  9. COBE 4 year data Shows polarization photos of Earth.

  10. Polarization A Close-Up!!

  11. Cosmic Anisotropy Telescope First published results came in 1996.

  12. MAP Microwave Anisotropy Probe

  13. PLANCK Max Planck Surveyor (formerly known as COBRAS/SAMBA)

  14. Blackbody Radiation A black body is a theoretical object that absorbs 100% of the radiation that hits it. Therefore it reflects no radiation and appears perfectly black.

  15. Question Time ? ? ? ? ? ?

  16. Thank you very much! THE END

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