Across
- 2. sequence of thermonuclear reactions that provides most of the energy radiated by the hotter stars
- 6. a transient astronomical event that causes the sudden appearance of a bright "new" star
- 9. spend billions of years fusing hydrogen to helium in their cores via the proton-proton chain
- 10. results from the rapid collapse and violent explosion of a massive star
- 11. determines if a star dies as a white dwarf, or has the mass to exceed this, launching a supernova to create a black hole or neutron star
- 14. a quantum mechanical effect critical to understanding the stability of white dwarf stars and metal solids
Down
- 1. a state of matter in which neutrons are packed so densely that they cannot occupy the same quantum state
- 3. the tendency of a system to preserve its rotational momentum when there is no external torque acting upon it
- 4. system of two astronomical bodies of the same kind that are comparable in size
- 5. a ring-shaped nebula formed by an expanding shell of gas around an aging star
- 7. refers collectively to white dwarfs, neutron stars, and black holes
- 8. rapidly rotating neutron stars that blast out pulses of radiation at regular intervals ranging from seconds to milliseconds
- 12. a type of neutron star with an extremely powerful magnetic
- 13. is a star that has collapsed to the size of the earth and is in the final stage of evolution for low-mass stars