9 White Dwarf leftover pieces of a star When the companion star loses mass and

9 white dwarf leftover pieces of a star when the

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Heavier = larger region, lighter = smaller region. 9. White Dwarf: leftover pieces of a star. When the companion star loses mass, and the matter accumulates as gas and dust around the other star, forming an accretion disk.
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10. Nova: The surface of a white dwarf that is exploding. Not the entire star. Matter which gathers is accumulated from a companion star, builds and with enough accumulation, the white dwarf tries to push back the matter, but continues to get heavier. Then the surface of the white dwarf explodes. Nova Cygni (11th Magnitude) is found in Cygnus. Star explosion at 2nd Magnitude can be seen with the naked eye. 11. SuperNova: High mass stars, exceed 100 solar masses, with a lot of different fusions occuring. THe core / shell collapses, the rest of the star expands, then explodes. Super nova occurs after silicon fusion ends. Silicon turns into iron in a super giant. SUper novas can outshine entire cores of galaxies. White dwarf explosions are type 1 supernovas, while supergiant explosions are type 2 supernovas. Ex: Supernova 1987A. Leaves black holes!!
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  • Spring '19
  • Otto Richter
  • Super Giant, B class stars

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