Professor, Department of Astronomy and Astrophysics
University of Chicago

Group Contact CV SnapShots
CMB Introduction '96   Intermediate '01   Polarization Intro '01   Cosmic Symphony '04   Polarization Primer '97   Review '02   Power Animations   Lensing   Power Prehistory   Legacy Material '96   PhD Thesis '95 Baryon Acoustic Oscillations Cosmic Shear Clusters
Transfer Function WMAP Likelihood Reionization PPF for CAMB Halo Mass Conversion Cluster Abundance
Intro to Cosmology [243] Cosmology I [legacy 321] Cosmology II [321] Current Topics [282] Galaxies and Universe [242] Radiative Processes [305] Research Preparation [307] GR Perturbation Theory [408] CMB [448] Cosmic Acceleration [449]

Reionization Optical Depth

Reionization suppresses the heights of the acoustic peaks uniformly while generating large angleE-mode polarization

Gravitational Waves (Tensors)

Gravitational waves contribute to large angle temperature anisotropy more than small angle anisotropy and have the net effect of lowering the relative heights of the acoustic peaks. They also generate large scale B-mode polarization by which they can be distinguished.