Chapter 13 and 14 - Galaxies

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Across
  1. 2. A type of galaxy with a central bar-shaped structure
  2. 6. denser region of a spiral galaxy surrounding the supermassive black hole
  3. 8. _____ Galaxy: Galaxy with a bright, active nucleus that can outshine the rest of the galaxy
  4. 9. The name for an extremely luminous active galactic nucleus
  5. 14. A galaxy where stars are still forming that emits a lot of light from its center
  6. 15. _____ Galaxy: Galaxy with spiral arms and a central bulge
  7. 16. Vast system of stars, gas, dust, and dark matter
  8. 17. Dense, spherical collection of older stars in the halo of a galaxy
  9. 19. Dense cloud of gas and dust in space that blocks light
  10. 20. The name for the Milky Way and the collection of galaxies in our region of space.
Down
  1. 1. Largest known structures in the universe, containing multiple galaxy clusters
  2. 2. Type of active galaxy with a radiation jet pointing towards Earth
  3. 3. Material between star systems in a galaxy
  4. 4. The giant structure thought the be at the center of all galaxies which can be billions of times more massive than out Sun.
  5. 5. Galaxy lacking a distinct shape or structure
  6. 7. ____ model: Theory explaining why spiral arms form in galaxies in bands of gas, dust, and stars, with empty space between them.
  7. 10. Group of galaxies bound together by gravity
  8. 11. Observation that the farther a galaxy is away, the faster it is moving away from us.
  9. 12. Unseen matter affecting galaxy rotation through gravity
  10. 13. Outer region of a galaxy, containing globular clusters, which extends above and below the disk.
  11. 18. _____ Galaxy: Galaxy emitting unusually strong radio waves