University of Cambridge > Talks.cam > Cavendish Astrophysics Seminars > The First Detection of the CMB Lensing Power Spectrum with ACT and its implications for Cosmology

The First Detection of the CMB Lensing Power Spectrum with ACT and its implications for Cosmology

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I will discuss the first detection of the power spectrum of CMB lensing in temperature maps made by the Atacama Cosmology Telescope. The CMB lensing power spectrum is a direct gravitational probe of dark matter and geometry at redshift ~2. I will demonstrate the power of such CMB lensing measurements by explaining how with our measurements, CMB data alone require the presence of dark energy at above 3-sigma.

This talk is part of the Cavendish Astrophysics Seminars series.

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