Visible Spectrum

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Electric Field• Electrons & Protons are thenegative & positively chargedelementary particles• They are surrounded by anelectric field• Which changes as they move
Electromagnetism• Changing electric fields (currents) make magnetic fields• Changing magnetic fields make electric currents• Changes in one induce changes in the other Maxwell 1860• All electromagnetic disturbances travel at the Speed of Light
Page 1: Visible Spectrum• Prism splits Vi
Page 5 and 6: All Electromagnetic WavesMove at th
Page 7 and 8: Radio Waves• Hertz discovered rad
Page 9: Infrared Region• Bag is transpare
Page 12 and 13: Gamma Rays• Produced by very hot
Page 14 and 15: Atmospheric Opacity• Opacity is t
Page 16 and 17: Heat or Thermal Energy• The hotte
Page 18 and 19: Blackbody Radiation• A blackbody
Page 20 and 21: Wein’s Law• As the temperature
Page 22 and 23: Blackbody Curve• After attempts b
Page 24 and 25: Planet Impact?• Star HD172555 has
Page 26 and 27: Moving Source• Wavelengths in dir
Page 28 and 29: Relative Motion• Stationary obser
Page 30 and 31: Picturesof Atoms• 48 iron atoms o
Page 32 and 33: What’s an Atom?-Nucleus & Electro
Page 34 and 35: Neutrons & Isotopes
Page 37 and 38: Bohr Atom• Tiny positive nucleusc
Page 39 and 40: Photon Emission/Absorption• The e
Page 41 and 42: Electron: is a particle & a wave•
Page 43 and 44: EmissionMatchesAbsorptionSpectrum
Page 45 and 46: PhotonAbsorptionandEmission• Elec
Page 47 and 48: Spectra ofMolecules• Carbon Monox
Page 49 and 50: Annie Jump Cannon• Originated the
Page 51 and 52: Cecilia Payne-Gaposchkin• Found t
Page 53 and 54:
Thermal Broadening• Because the a
Page 55 and 56:
Pressure/Collisional Broadening•
Page 57 and 58:
Discovering Extrasolar Planets• S
Page 60 and 61:
Electromagnetic Spectrum• All ele
Page 62 and 63:
Energy LevelDiagram of aHydrogen At
Page 64 and 65:
Pressure• Gas is made of tiny ato
Page 66 and 67:
Relative Radii of Atoms• Atomic r
Page 68 and 69:
Time to Solar System Formation• M
Page 70 and 71:
Transitions of Hydrogen• Differen
Page 72 and 73:
Spectral Sequence = Temperature Seq
Page 74 and 75:
Solar Spectrum• Millions of absor
Page 76 and 77:
Types of SpectraWe usually look at
Page 78 and 79:
(B-V) Color Index• Counting the n
Page 80 and 81:
Wien’s Law• Wavelength of maxim
Page 82 and 83:
Loss ofAtmosphere• First atmosphe
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Visible Spectrum

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