Unformatted text preview: by its gravitational attraction on other bodies. 6. What process generates the radio emission in galaxies? High speed, almost the speed of light electrons, spiraling around magnetic field lines. 7. What is a Seyfert galaxy? It is a spiral galaxy with an abnormal bright nucleus 8. What is a quasar? An extremely luminous, extremely distant galaxy 9. What is the Local Supercluster? It contains the Virgo galaxy cluster and more than a dozen others that span about 150 million light years. 10. A galaxy has a recession speed of 13,000 kilometers per second. What is its distance in megaparsecs? You must show all the math steps below. You may write the steps in pencil. If you can’t do the math, then please ask me for help. I need help with this....
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- Spring '09
- elliptical galaxies, Kate Stonesifer, basic galaxy types, extremely distant galaxy, Virgo galaxy cluster