Astronomy Colloquium for 2021-10-20

Series: Astronomy Colloquium
Date: Wednesday 20-Oct-2021
Time: 16:05-17:00 (4:05-5:00 pm)
Location: ATL 2400
Speaker: Dr. Kyle Helson (GSFC)
Title: The Status and Outlook of Cosmic Microwave Background Polarization Measurements

Measurements of the Cosmic Microwave Background (CMB) over the last 50+ years have yielded a wealth of information about the universe and LambdaCDM cosmology. Modern CMB instruments continue to search for the B-mode polarization signal from gravitational waves produced during the inflationary epoch. In this talk I will cover a brief history of measurements of the CMB and give a survey of the current status of the field. I will also talk about my work at Goddard Space Flight Center with the Cosmology Large Angular Scale Surveyor (CLASS) collaboration. CLASS is a ground-based series of telescopes in the Atacama desert in northern Chile, designed to measure the CMB and large angular scale B-mode polarization.

Colloquia for the Fall 2020 semester will be held on zoom. Contact Dr. Leslie Sage for details.

Colloquium Organizer: Dr. Leslie Sage


Special accommodations for individuals with disabilities can be made by calling (301) 405-3001. It would be appreciated if we are notified at least one week in advance.


Directions and information about parking can be found here.

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