Chapter 16 Homework

Chapter 16 Homework - Chapter 16 Fill In the Blank 1....

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Chapter 16 Fill In the Blank 1. Active galaxies generally emit most of their radiation at inconsistant wavelengths. 2. A Seyfert galaxy looks like a normal spiral, but with a very bright galactic nucleus . 6. For all types of active galaxies, the original source of the tremendous energy emitted is the galactic nucleus . 9. The amount of mass that must be consumed by a supermassive black hole to provide the energy for an active galaxy is about _______ per _______. 11. Quasar spectra were understood when it was discovered that their radiation is _______ by an unexpectedly large amount. 12. The distance to a quasar in light-years is not simply equal to the time in years since the quasar emitted the light we see because of the _______ of the universe. 13. The fact that a typical quasar would consume an entire galaxy’s worth of mass in 10 billion years suggests that quasar lifetimes are relatively _______. 14. The image of a distant quasar can be split into several images by gravitational lensing, produced by a foreground _______ along the line of sight. Review and Discussion
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This homework help was uploaded on 04/02/2008 for the course ASTR 101 taught by Professor Caffo during the Fall '06 term at New Mexico.

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Chapter 16 Homework - Chapter 16 Fill In the Blank 1....

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