Across
- 2. Dark matter interactions with atoms are ______(10) recoil and _____(11) scattering.
- 4. Fritz Zwicky employed the ________ effect to find out the velocities of the galaxies in the Coma Cluster and estimate their mass from it.
- 7. The gravitational attraction between two masses is inversely proportional to the _______ of the distance
- 10. Why was dark matter undetectable by X-rays? "They did not interact with ______"
- 11. These interactions result in the creation of _____(12) and the ________(13) of the atom respectively.
- 12. Sterile neutrinos could appear when a normal neutrino (standard model of particles)_________ into it?
- 13. How will the universe end if dark energy is too strong? Big ___
- 14. What constant describes the strength of dark energy? ____________ constant
- 15. What is one thing indirect detection of WIMPs focus on? "____ of the WIMPs"
- 16. Dark matter interactions with atoms are ______(10) recoil and _____(11) scattering.
- 17. What property of the particle detected by LSND in the 1990s suggested it was a new neutrino?
Down
- 1. Dark matter is called dark matter because it does not interact with ________________ radiation
- 3. The Aristotelian theory of the cosmos stated that the earth was governed by terrestrial laws and the heavens by ________ laws
- 5. what is the theory in which dark energy is a new quantum field called?
- 6. The three main evidences used to predict the existence of dark matter were estimating the mass of the galaxies, velocity curves and _________ lensing.
- 7. Normally, we would expect that the further away a star is from the center of its galaxy, the _________ it would be moving, but this was contradicted by what scientists found.
- 8. In the 1800s, Lord Kelvin calculated the proposed mass of the ______ based on observed movements of stars
- 9. How do we know galaxies are moving away from us?
- 10. These interactions result in the creation of _____(12) and the ________(13) of the atom respectively.