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Physics Colloquium - Dr. Simone Aiola

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Thursday, November 5, 2020, 4 pm– 5 pm

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This is a past event.

of Flatiron Institute - Center for Computational Astrophysics (CCA) will give a talk titled "Cosmological Results from the Atacama Cosmology Telescope Data Release 4 (DR4)" on Thursday, November 5th at 4:00pm via Zoom. 

The Atacama Cosmology Telescope (ACT) is a ground-based millimeter telescope capable to map half of the sky at arcminute resolution. Data taken between 2013 and 2016 allows us to tightly constrain the Lambda-CDM cosmological parameters with a set of angular scales that is complementary to those probed by satellite experiments. In this talk I will describe the 2013-2016 survey and present the derived cosmological constraints for both Lambda-CDM as well as extensions to the standard model. I will further discuss how the ACT DR4 measurements weigh in on the observed tension between the low-redshift vs high-redshift estimates of the Hubble constant parameter.

Dr. Simone Aiola is a Research Scientist at the Center for Computational Astrophysics at the Flatiron Institute, where he divides his research time between the Simons Observatory (SO) and the Atacama Cosmology Telescope (ACT). Dr. Aiola is currently the project lead for the SO data management effort. In addition, he led the analysis of the 2013-2016 ACT data. Dr. Aiola received his PhD and MS degrees in Physics from University of Pittsburgh, PA

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