Table of Contents
Astro 10-Lecture 5: Heat, Light and the Structure of Atoms
Lets start with another question: What is matter?
Hydrogen: The simplest atom.
Other atoms
Molecules
What is light?
Some definitions.
The inverse square law
The Electromagnetic Spectrum
How do astronomers gather light?
Problems that affect telescopes
Problems that affect telescopes
Splitting up light into a spectrum
How do we make light?
Which brings us to heat...
Blackbody Radiation
Blackbody radiation
Atomic Spectra
Each element has a unique signature because of its energy level structure
Absorption of Photons
Absorption of Photons
Kirchoff’s Laws
Kirchoff’s Laws
Kirchoff’s Law Exercise
Applied to Stars
Emission Nebulae
Scattering from particles (dust)
Why is the sky blue? Why is the sunset red?
Reflection Nebulae
Emission or Reflection Nebula?
Emission or Reflection Nebula?
Views of the Galaxy Visible Light
Views of the Galaxy Infrared
Views of the Galaxy Radio
Views of the Galaxy Xray
The Doppler Effect
Spectroscopic Binary
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Author:
Email: korpela at ssl.berkeley.edu
Home Page: http://setiathome.ssl.berkeley.edu/~korpela/
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