Quasars and Galaxies

12345678910111213141516171819202122232425262728
Across
  1. 5. make up two-thirds of spiral galaxies
  2. 7. centers of galaxies emitting less energy than quasars
  3. 8. streams of material being emitted from quasars
  4. 13. a quasi-stellar object
  5. 15. the change in the spectrum that indicates objects are moving away from us
  6. 17. when ____ the accretion disk gives of lots of energy
  7. 19. the types of stars Hubble used to measure the distances to galaxies
  8. 20. the relationship between the distance to a galaxy and its speed
  9. 21. the band of material around a blackhole
  10. 24. what a quasar really is
  11. 26. galaxies with a central bulge and a disk made of spiral arms
  12. 27. the distance light can travel in a year
  13. 28. another name for the football shape of some galaxies
Down
  1. 1. quasars are found in the ____ of galaxies
  2. 2. the change in the spectrum that indicates objects are moving towards us
  3. 3. he discovered galaxies are made of individual stars
  4. 4. early discovered quasars were a strong source of this
  5. 6. a collection of gas, dust, and stars held together by gravity
  6. 9. the type of supernova useful for measuring distances to galaxies
  7. 10. a _____ blackhole triggers the forming of a galaxy
  8. 11. galaxies with an unorganized shape
  9. 12. Elliptical galaxies contain mostly ____ stars
  10. 14. the diagram Hubble used to classify galaxies
  11. 16. the quasars are moving ___ to be in our galaxy
  12. 18. a cloud of gas and dust
  13. 22. galaxies with a spherical or ellipsoid shape
  14. 23. what a quasar is doing
  15. 25. most quasars formed ____ in the universe