'Last scattering surface' diaporamas de présentation

Omniscopes

Omniscopes. Max Tegmark, MIT. Courtney Peterson. Tongyan Lin. Mike matejek. Andy Lutomirski. Adrian Liu. Chris Williams. T H E O M N I S C O P E R S. Courtney Peterson. Tongyan Lin. Joel Villasenor. Ed Morgan. Jackie Hewitt. Mike matejek. Andy Lutomirski. Adrian Liu.

642 views • 27 slides

Observational Constraints on Sudden Future Singularity Models

392 views • 24 slides

Physics 133: Extragalactic Astronomy and Cosmology

Physics 133: Extragalactic Astronomy and Cosmology. Lecture 15; March 5 2014. Previously:. CMB fluctuations are generated by fluctuations in the gravitational field at the time of last scattering The angular scale of the fluctuations gives us information on the content of the universe.

393 views • 24 slides

NEUTRINO DECOUPLE as Hot DM

NEUTRINO DECOUPLE as Hot DM. Neutrinos are kept in thermal equilibrium by the creating electron pairs and scattering (weak interaction): This interaction freezes out when the temperature drops to k T ? ~MeV~ rest mass electrons Because very few electrons are around afterwards

267 views • 15 slides