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Dr.  Stephen Rinehart

NASA -- Goddard Space Flight Center
Observational Cosmology Code 665

April 7, 3:30 PM

Thirkield Hall (Physics), room 103 

Far-Infrared Interferometry:
The Path to High Angular Resolution at Long Wavelengths

Astronomical studies at infrared wavelengths revolutionized our understanding of galaxies, stars, and planets, as well as their origins. But further progress on major questions is stymied by the inescapable fact that the spatial resolution of single-aperture telescopes degrades at long wavelengths. Exciting processes lurk below our current far-infrared (FIR) resolution, including clustered star formation, powerful interactions at the cores of galaxies, and the formation of planetary systems. Interferometry is the path to high angular resolution at FIR wavelengths, making it a potent tool for scientific discovery. The Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII) is a high-altitude balloon experiment designed to  isolate the mid-to-far infrared emission from forming stars in cluster environments, allowing us to constrain models of cluster formation.  BETTII will also pave the way for future space-based interferometers that enable studies of the characteristics of extra solar planets to the formation of the earliest galaxies to the physics of black holes.

Refreshments will be served at 3:15 PM.