July 31, 2017 to August 4, 2017
Fermi National Accelerator Laboratory
US/Central timezone

The ACTPol and Advanced ACTPol Experiments

Aug 1, 2017, 1:50 PM
Comitium (Fermi National Accelerator Laboratory)


Fermi National Accelerator Laboratory

Presentation Cosmology and Astrophysics Cosmology and Astrophysics


Dr Jeff McMahon (University of Michigan)


ACTPol and Advanced ACTPol are a series of cameras deployed on the Atacama Cosmology Telescope (ACT) and used to map the temperature and polarization of the cosmic microwave background (CMB) in multiple frequency bands and with arc minute resolution. Survey operations began in 2013 with a sky coverage of hundreds of square degrees in the 150 GHz band. Over the past five years we have upgraded the instrument and expanded the sky coverage. Beginning in 2016 we have been undertaking a wide survey covering 14,000 square degrees with sensitivity in the 90, 150, and 220 GHz bands. These data have been used to make measurements of CMB polarization, CMB lensing, and cross-correlations between these maps and observations at other wavelengths. In this presentation I given an overview of these experiments, our published results to date, and provide a preview of the science which will come out of the Advanced ACTPol data set for which analysis is ongoing.

Primary author

Dr Jeff McMahon (University of Michigan)

Presentation materials