Close this Window

Virtual ASD Colloquium

April

27

Gazing Back to the Dawn of Time from Above the Clouds
Jeff Filippini (University of Illinois at Urbana-Champaign)

Inflation is thought to have seeded the cosmos with a hum of primordial gravitational waves - unique messengers from the universe's earliest moments. If present, these should have left a unique but vanishingly faint signature in the polarization of the cosmic microwave background. SPIDER is a powerful balloon-borne instrument designed to tease out this faint polarization pattern amidst obscuring Galactic foregrounds, from a vantage point 35 km above the Antarctic ice. I will discuss SPIDER's successful long-duration balloon flight, its recently-released constraints on cosmology and Galactic foregrounds, and the program's upcoming second flight, which will make deep maps of Galactic dust with new 280 GHz receivers. I will also preview upcoming missions to explore different epochs of cosmic history from stratospheric balloons, including TIM, which will observe the history of star formation through far-infrared line-intensity mapping.

 
Date April 27, 2021
Start/End Time 03:45 PM - 05:00 PM
Location Webex
Website https://science.gsfc.nasa.gov/660/seminars/ASDcolloq/
Contact Knicole Colón
Email Address knicole.colon@nasa.gov
Event Type Seminars/Colloquia
OptionsAdd to my calendar.
Close this Window