Astronomy 113, Session 003
Review on Exam 1 (Feb. 22, 2006)
· Chap. 4
o Kepler’s first law
o Kepler’s second law
o Kepler’s third law
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· Chap. 5
o The nature of light
o Electromagnetic radiation
o Wien’s law
o Blackbody
o Stefan-Boltzmann law
o Kirchoff’s laws on spectrum
1. Continuous spectrum
2. Emission spectrum
3. Absorption spectrum
o Bohr’s model of atom
o Doppler effect
· Chap. 18 --- Sun, Our Star
o What is Sun’s energy?
o Hydrogen fusion, Proton-proton chair reaction
o Hydrostatic equilibrium
o Theoretical model of the Sun
o Sun’s internal structure: core, radiation zone and convection zone
o Neutrinos
o Sun’s atmosphere
o Photosphere
o Limb darkening effect
o Chromosphere
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o Sunspot
o Solar cycle
o Zeeman effect
o Magnetogram
o Differential rotation of the Sun
o Magnetic dynamo
o Coronal loops, filament, prominence
o Flares, coronal mass ejections
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· Chap. 19 --- the Nature of the Stars
o Parallax, stellar parallax
o Relation between distance, apparent brightness and luminosity, the inverse-square law
o Apparent magnitude and absolute magnitude
o Magnitude scale
o Star’s surface temperature, color, and color ratio
o Stellar spectrum
o Spectral types: O, B, A, F, G, K, M
o Relation between luminosity, surface temperature and radius
o Hertzsbrung-Russell (H-R) diagram
1. Main sequence
2. Giant
3. Supergiant
4. White dwarf
o Spectroscopic parallax
o Binary star system
o Stellar mass calculation, center of mass
o Mass-luminosity relation for main-sequence star’
o Spectroscopic binary stars
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· Chap. 20 --- The Birth of Stars
o Interstellar medium
o Interstellar gas and dust
o Nebulae
o Emission nebulae
o H II region
o Dark nebulae
o Reflection nebulae
o Interstellar extinction
o Interstellar reddening
o Protostars
1. Evolution dependence on mass
o Jets, or bipolar outflow
o Young star clusters
1. Stellar association
2. H II region
3. H-R diagram
o Giant molecular clouds
o Triggers of Star Birth