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Phase 7: Neutron Star

Phase 7: Neutron Star. Composed mainly full of neutrons are produced when a supernova explodes, forcing protons and electrons to combine to produce a neutron star. They are very dense, normally having a mass 3x the sun’s but only a diameter of 20km.

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Phase 7: Neutron Star

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  1. Phase 7: Neutron Star • Composed mainly full of neutrons are produced when a supernova explodes, forcing protons and electrons to combine to produce a neutron star. • They are very dense, normally having a mass 3x the sun’s but only a diameter of 20km. • If it had greater mass, it would shrink further to become a black hole

  2. Phase 8:Black Holes • Believed to form from massive stars at the end of their life times • Gravitational pull is so great virtually nothing can escape from it, except something's, due to quantum physics. • The density of it’s matter cannot be measured • They distort the space around them, and can suck neighboring matter into themselves, including neighboring stars.

  3. Interesting Facts • One spoonful of degenerate matter has the mas of several tons. • Supernovas are thought to be the main source of elements heavier that hydrogen and helium. • Pulsars are believed to be neutron stars that are spinning very rapidly.

  4. Interesting Facts • The brightest X-ray sources in our galaxy are the remnants of massive stars that have undergone a catastrophic collapse -- neutron stars and black holes. • Other powerful sources of X-rays are giant bubbles of hot gas produced by exploding stars. White dwarf stars and the hot, rarified outer layers, or coronas, of normal stars are less intense X-ray sources. 

  5. Videos (If extra Time) • The Evolution of Stars (3:11) • Supernova Explosion ( 1:11 min) • Largest Black Holes (25 min)

  6. Resources Wikipedia Astro.keele.ac.uk Telescope.org Library.thinkguest.org

  7. HH 46/47 These are small patches of nebulosity associated with newly born stars Home

  8. Omega Nebula An example of an emission nebula Home

  9. HorseheadNebula Example of a dark nebula Home

  10. Cat’s Eye Nebula Planetary Nebula Home

  11. Red Rectangle Nebula Protoplanetary Nebula Home

  12. SNR B0509-67.5 Nebula with a very delicate outer shell Home

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