Astronomical Instrumentation
Current approaches to achieving either high resolution or high contrast in astronomical observations typically depend on making the telescope your looking with bigger. The bigger the telescope, the finer the detail one can resolve, and the greater one's ability to study dim sources near bright ones. Starkman and Copi have developed a new approach -- steerable occulting satellites -- where one interposes a large opaque mask between the source and the telescope. Contrast is obtained by blocking bright sources to study dim ones. Resolution is improved by slowly moving the occulter across the field -- the amount of light one collects as a function of time can then be interpreted in terms of the spatial structure of the source.
The future Constellation-X, an array of satellites for x-ray astronomy that is due to be lauched in 2011.
Copi Covault Starkman