Kavli Affiliate: Anthony Challinor | Summary:We present a cosmic microwave background (CMB) lensing power spectrum analysis using daytime data (11am-11pm UTC) gathered by the Atacama Cosmology Telescope (ACT) over the period 2017-2022 (ACT Data Release 6). This dataset is challenging to analyze because the Sun heats and deforms the telescope mirror, complicating the characterization of […]
Continue.. The Atacama Cosmology Telescope: A demonstration of CMB lensing measurement from daytime data