Astronomy 122
Mid-term Exam 3 Review

Star Formation, Stellar Evolution, and Stellar Explosion
(Chapters 19, 20, 21)

May 22, 2013, jeb


The Births of Stars

Evolution of stars

Stellar Explosions

Two Types of Supernovae

Neutron Stars


Close Binaries


Neutrinos are elementary particles

  • No charge
  • Very little particle mass
  • Hardly interacts with anything (passes through light years of matter)
  • Very difficult to detect
  • Travels at nearly the speed of light

Neutrinos provide astronomers with information from within the stars

Hertzsprung-Russell Diagram