Mathew S. Madhavacheril

CMB-S4 Science Book, First Edition

This book lays out the scientific goals to be addressed by the next-generation ground-based cosmic microwave background experiment, CMB-S4, envisioned to consist of dedicated telescopes at the South Pole, the high Chilean Atacama plateau and possibly a northern hemisphere site, all equipped with new superconducting cameras. CMB-S4 will dramatically advance cosmological studies by crossing critical thresholds in the search for the B-mode polarization signature of primordial gravitational waves, in the determination of the number and masses of the neutrinos, in the search for evidence of new light relics, in constraining the nature of dark energy, and in testing general relativity on large scales.

THE ATACAMA COSMOLOGY TELESCOPE: LENSING OF CMB TEMPERATURE AND POLARIZATION DERIVED FROM COSMIC INFRARED BACKGROUND CROSS-CORRELATION

We present a measurement of the gravitational lensing of the Cosmic Microwave Background (CMB) temperature and polarization fields obtained by cross-correlating the reconstructed convergence signal from the first season of Atacama Cosmology Telescope Polarimeter data at 146 GHz with Cosmic Infrared Background (CIB) fluctuations measured using the Planck satellite. Using an effective overlap area of 92.7 square degrees, we detect gravitational lensing of the CMB polarization by large-scale structure at a statistical significance of

The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters

4.5\sigma

Evidence of Lensing of the Cosmic Microwave Background by Dark Matter Halos

. Combining both CMB temperature and polarization data gives a lensing detection at

Evidence for the kinematic Sunyaev-Zel'dovich effect with the Atacama Cosmology Telescope and velocity reconstruction from the Baryon Oscillation Spectroscopic Survey

9.1\sigma

Two-season Atacama Cosmology Telescope polarimeter lensing power spectrum

significance. A B-mode polarization lensing signal is present with a significance of

The Atacama Cosmology Telescope: measuring radio galaxy bias through cross-correlation with lensing

3.2\sigma

Survey strategy optimization for the Atacama Cosmology Telescope

. We also present the first measurement of CMB lensing–CIB correlation at small scales corresponding to

MassiveNuS: cosmological massive neutrino simulations

l\gt 2000

Measurement of a Cosmographic Distance Ratio with Galaxy and Cosmic Microwave Background Lensing

. Null tests and systematic checks show that our results are not significantly biased by astrophysical or instrumental systematic effects, including Galactic dust. Fitting our measurements to the best-fit lensing-CIB cross-power spectrum measured in Planck data, scaled by an amplitude A, gives