Outline2

Information about Outline2

Published on November 13, 2007

Author: Carlton

Source: authorstream.com

Content

Slide1:  Review for Quiz 2 Outline of Part 2:  Outline of Part 2 Properties of Stars Distances, luminosities, spectral types, temperatures, sizes Binary stars, methods of estimating mass, stellar masses The HR Diagram Spectral type, absolute magnitude, using the HR diagram Stellar Evolution (Low Mass and High Mass stars) Hydrostatic equilibrium, sources of energy, energy transport Evolution in the HR diagram Stellar Endpoints Planetary nebulae white dwarfs, supernovae, neutron stars Black holes Binary Star Evolution Mass transfer and accretion; novae Protostars and Star Formation The H-R Diagram:  The H-R Diagram Stellar Evolution:  Stellar Evolution Main Sequence (core H fusion) Stellar Evolution:  Stellar Evolution Main Sequence (core H fusion) Red Giant (core contraction, Hydrogen shell burning) Stellar Evolution:  Stellar Evolution Main Sequence (core H fusion) Red Giant (core contraction, Hydrogen shell burning) Core Helium burning Stellar Evolution:  Stellar Evolution Main Sequence (core H fusion) Red Giant (core contraction, Hydrogen shell burning) Core Helium burning 2nd Giant Branch (core contraction, H, He shell burning) Mass Loss Occurs Here Stellar Evolution:  Stellar Evolution Main Sequence (core H fusion) Red Giant (core contraction, Hydrogen shell burning) Core Helium burning 2nd Giant Branch (core contraction, H, He shell burning) Mass Loss Occurs Here If Core is Less Than 1.4 M Planetary Nebula (ionization of mass lost by star) White Dwarf (inert C/O core) Planetary Nebulae:  Planetary Nebulae Stellar Evolution:  Stellar Evolution Series of core burning and core contractions Carbon to Magnesium, etc. If Core is Greater Than 1.4 M Magnesium, etc., to Silicon, etc. Silicon, etc. to iron SUPERNOVA Slide11:  Supernova Remnants Elemental Synthesis:  Elemental Synthesis In the supernova explosion, all the elements are made, and are ejected into space Stellar Endpoints:  Stellar Endpoints If Remnant Core is less than 3 M Remnant is a Neutron Star If Magnetic Pole Points at Earth Remnant is a Pulsar Stellar Endpoints:  Stellar Endpoints If Remnant Core is less than 3 M Remnant is a Neutron Star If Magnetic Pole Points at Earth Remnant is a Pulsar If Remnant Core is greater than 3 M Remnant is a Black Hole The HR Diagram:  The HR Diagram

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