| Speaker: | Martin White (UC. Berkeley) |
|---|---|
| Title: | Cosmic sound, near and far |
| Date (JST): | Wed, Jul 17, 2013, 15:30 - 17:00 |
| Place: | Lecture Hall |
| Related File: | 882.pdf |
| Abstract: | The coupling of baryons and photons by Thomson scattering in the early universe leads to a rich structure in the power spectra of the cosmic microwave background photons and the matter. The study of the former has revolutionized cosmology and allowed precise measurement of a host of important cosmological parameters. The study of the latter constrains the nature of the dark energy believed to be causing the accelerated expansion of the universe. I will discuss recent measurement of cosmic sound by the Planck and BOSS collaborations, and what they have taught us about cosmology. |
| Seminar Video: | [VIDEO] |
