Astronomy Spring Final

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Across
  1. 3. the density of a neutron star is the same as an ______.
  2. 5. the study of the nature, origin, and evolution of the universe.
  3. 8. the name of the galaxy cluster that the Milky Way resides in.
  4. 9. when the sun dies it will eventually become a _____.
  5. 10. outermost layer of the suns atmosphere, seen during a total eclipse
  6. 11. galaxy type that contains mostly old stars and has no new star formation
  7. 13. the linear relation between the distance to a galaxy and its radial velocity
  8. 14. theoretical boundary of a black hole, the point of no return
  9. 15. the longest form of electromagnetic radiation
  10. 16. galaxies can evolve and change shape through ____ with other galaxies.
Down
  1. 1. a star spends the majority of it life in the _____
  2. 2. considered the surface of the sun, where most of the light that we see from the sun
  3. 4. is the change in the wavelength of radiation due to relative radial motion of source and observer.
  4. 6. The ___ model describes pulsars as rotating neutron stars with strong magnetic fields that confine high-speed charged particles in two beams emanating from the magnetic poles of the neutron star.
  5. 7. one method used to show the presence of dark matter, it is the bending of light due to gravity
  6. 12. the shortest most energetic form of electromagnetic radiation.