Содержание
- 2. Chapter 16, Dark Matter, Dark Energy, and the Fate of the Universe If we know how
- 3. Dark Matter and Dark Energy Definitions… Dark Matter Dark matter is the name given to mass
- 4. How do we measure the mass of Milky Way, or other galaxies?
- 5. The Rotation Curve of the Milky Way Galaxy Like our measurement of the mass of solar
- 6. What Does the Flat Rotation Curve of the Milky Way Tell Us? Let’s first look at
- 7. What Does the Flat Rotation Curve of the Milky Way Tell Us? The flat rotation curve
- 8. The Rotation Curve of the Spiral Galaxies We can estimate the mass contained in other spiral
- 9. Dark Matter in Spiral Galaxies All observations of the mass in spiral galaxies suggest that The
- 10. Dark Matter in Elliptical Galaxies We cannot measure the rotation rate of stars in Elliptical galaxies
- 11. Measuring the Mass of Galaxy Clusters The mass of cluster of galaxies can be measured by
- 12. X-ray Observation of Intercluster Medium The blue patch represent the X-ray emission from extremely hot gas
- 13. Gravitational Lensing Effect This galaxy is directly behind the cluster. Gravitational lensing produces the multiple copies
- 14. Results of Mass Measurements All observations consistently tell us that There are more mass then we
- 15. What is Dark Matter? Possible Dark Matter Candidates: Ordinary Dark Matter: MACHOs (Massive Compact Halo Objects)
- 16. Is Dark Matter Real? Do we really need dark matter to explain the observed rotation curves
- 17. Possible Fate of the Universe We already know that the universe is expanding. Only the pull
- 18. Evidence of the Acceleration of the Galaxies Latest data suggest that the expansion rate of the
- 19. Supernovae from Distant Galaxies These snapshots, taken by NASA's Hubble Space Telescope, reveal five supernovae, or
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