The Universe and Everything

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Across
  1. 2. The disk of AGNs emit large amounts of this type of light
  2. 4. The farther a galaxy is from us the ________ it is moving away
  3. 6. neucleosynthesis ends after this time
  4. 10. 1 billion to 10 billion years after the big bang. This is the time frame when lots of galaxy mergers are happening resulting in many AGNs
  5. 12. in general it is this type of particle that is said to 'carry' the forces
  6. 14. the universe is approximately 13.8_______ years old
  7. 15. period of time after the cosmic microwave background radiation was released but before stars formed
  8. 21. before astronomers were able to use the redshift to determine distance, they used this to find the the distance to galaxies
  9. 22. Hubble's law is a way for us to understand that the universe is ___________
  10. 23. we know galaxies are moving away from us because their light is ___________
  11. 24. abbreviation for the observed photons that were released during the early universe. These photons have been redshifted to long wavelengths and hint at mass distribution in the early universe
Down
  1. 1. most of the matter in a galaxy is made up of this type of matter
  2. 3. when AGNs finally quiet down they evolve into our 'normal' galaxies. What type would a seyfert galaxy evolve into?
  3. 5. When our view point is directly down the jet of an AGN we see a ________
  4. 7. Seyfert type I and type II see different types of emission lines from clouds. Seyfert type 2 looks at the AGN from the side. What type of emission is observed?
  5. 8. there are this many fundamental forces, all of which were established in the universe by 10^-9 seconds after the big bang
  6. 9. the particles responsible for 'carrying' the strong nuclear force
  7. 11. The large jets for AGNs emit large amounts of this type of light
  8. 13. when two galaxies collide and merge they usually result in a great amount of this happening
  9. 15. when star formation began after the big bang
  10. 16. The force that is responsible for holding protons and neutrons together in the nucleus
  11. 17. The weakest of the four fundamental forces
  12. 18. force responsible for causing static electricity, currents to flow and magnetic forces
  13. 19. if you take the inverse of hubble's constant (the slope of the graph of distance and speed of galaxies) you can find this
  14. 20. when looking at the light from galaxies we see that, aside from our local cluster, galaxies are all ______ from us