Seminar Series

BETTII: The balloon experimental twin-telescope for infrared interferometry

Richard K. Barry, NASA Goddard Space Flight Center

27 Jan 2014 - 15:30

The Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII) is an 8-meter baseline far-infrared interferometer designed to fly on a high altitude balloon. BETTII uses a double-Fourier Michelson interferometer to simultaneously obtain spatial and spectral information on science targets; the long baseline permits subarcsecond angular resolution, a capability unmatched by other far-infrared facilities. Here, we present key aspects of the overall design of the mission and provide an overview of the current status of the project. We also discuss briefly the implications of this experiment for future space-based far-infrared interferometers.

LCO Seminar Series,
6740 Cortona Dr, Suite 102,
Goleta, CA 93117