Beginning of time

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Across
  1. 2. when AGNs finally quiet down into normal galaxies, what type would a seyfert galaxy evolve into
  2. 6. the disk of AGNs around the black hole that emits large amounts of light
  3. 11. period of time after the CMBR but before stars are born. No light.(3wds)
  4. 12. force that is responsible for holding protons and neutrons together in the nucleus
  5. 14. abbreviation for the observed photons that were released during the early universe once matter had settled and cooled. These photons have redshifted to long wavelengths and hint at mass distribution in the universe
  6. 15. In general, we estimate that the universe is 13.8 ______ years old.
  7. 17. 1 billion to 10 billion years after the big bang. This is the time frame when lots of galaxy mergers were happeniig, resulting in many AGNs
  8. 20. We know that galaxies are moving away from us because their light is ___
  9. 21. particle responsible for carrying the strong force
  10. 24. nuecleosynthesis ended after this time in the early universe(2wds)
  11. 25. The disk of the AGN emits a great deal of this type of light
  12. 26. there is no center to the big bang. It happened ____________.
Down
  1. 1. the farther
  2. 3. the era when the first stars were created in the universe(2wds)
  3. 4. the 'force' carrying 'particle'
  4. 5. force responsible for changing one elementary particle into another
  5. 7. the force responsible for causing static electricity, currents and magnets
  6. 8. there are this many fundamental forces established in the universe
  7. 9. what type of light do we see if we look directly down the jet of an AGN
  8. 10. are variable stars on the instability strip that we can use to figure out distances
  9. 13. the weak force has 2 bosons associated with it. One is the Z boson, the other is the _______.
  10. 16. category of elementary particles that includes electrons and neutrinos
  11. 18. the big bang was an explosion (T/F)
  12. 19. the weakest of all the forces
  13. 22. Seyfert Type 1 and Type II AGns see different type of emission lines from clouds. Seyfert type II looks at AGNs from the side so we see mostly the torus blocking our view of the center. What type of emission lines do we see?
  14. 23. that which makes up protons and neutrons