STScI Preprint #1265

Optical Interferometry and Aperture Synthesis in Space with the Space Interferometry Mission

The Space Interferometry Mission (SIM) promises to revolutionize optical astronomy with its extraordinary astrometric accuracy of 4µas. The fringe phase stability required to provide this accuracy (~ 0.14^o) will also enable a unique and unprecedented capability for high-dynamic-range synthesis imaging in space at optical wavelengths with an angular resolution of typically 10 milliarcseconds.

We summarize the characteristics of the imaging mode of SIM and compare it to ground-based synthesis imaging instruments, which operate only at radio wavelengths. In some respect SIM is an optical version of the Westerbork Synthesis Radio Telescope in the Netherlands.

Status:

Appeared in: SPIE Proc. 3350:561-570, 1998

Affiliations:

Space Telescope Science Institute, 3700 San Martin Drive Baltimore, 21218, USA