Black Holes, Pulsars, Neutron Stars

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Across
  1. 2. A neutron star has one of the strongest ____ ____
  2. 3. Type of neutron star which sends out pulsars
  3. 5. High-energy charged particles, x-rays and gamma rays produced in space
  4. 8. A neutron star is made almost entirely of ____
  5. 9. A neutron star is the most ___ object in the entire Universe
  6. 10. Neutron stars ____ very rapidly
  7. 12. The center of a black hole
  8. 13. When particles get pushed together
  9. 14. A star's ___ must be between 1 and 3 solar masses to become a neutron star
  10. 15. A neutron star with an incredibly strong magnetic field
Down
  1. 1. The ____ limit states the mass requirement of a white dwarf
  2. 4. A fermion that is expelled as energy by dying stars
  3. 6. Star made up almost entirely of neutrons
  4. 7. The outer boundary of a black hole
  5. 11. The speed needed for an object to escape from the gravitational pull of another object