10-16 June 2018
Dalhousie University
America/Halifax timezone
Welcome to the 2018 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2018!

What we have learned from the Cosmic Microwave Background (I)

12 Jun 2018, 13:30
SUB 307 (cap.80) (Dalhousie University)

SUB 307 (cap.80)

Dalhousie University

Invited Speaker / Conférencier(ère) invité(e) Theoretical Physics / Physique théorique (DTP-DPT) T3-4 Gravity and Cosmology (DTP/DHP) | Gravité et cosmologie (DPT/DHP)


Prof. Mark Halpern (UBC)


It is now 100 years since Planck received a Nobel Prize for describing blackbody radiation. It is 75 years since McKellar found a background temperature of molecules in space and 55 years from the recognized discovery of the cosmic microwave background. Measurements of the spectrum, and the the anisotropy of the intensity and polarization patterns of the CMB have told us about thermal equilibrium in the first weeks of the Universe, the geometry, baryon fraction and expansion history of the Universe and constrain neutrino masses, among many other things. I will describe these measurements and also the current experimental efforts to measure large angular scale odd-parity polarization patterns in a hope to understand cosmic inflation and perhaps GUT-scale physics.

Primary author

Prof. Mark Halpern (UBC)

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