Design Of And Progress Towards The Gravity Wave-front Sensors

Details Design Of And Progress Towards The Gravity Wave-front Sensors Design Of And Progress Towards The Gravity Wave-front Sensors

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21944612d&link_type=abstract

American Astronomical Society, AAS Meeting #219, #446.12

Astronomy and Astrophysics

Astronomy

Scientific paper

The GRAVITY instrument is a beam-combining interferometer for the four telescopes of the VLT, and relies upon four near-infrared (1.4-2.4 micron) Shack-Hartmann style wave-front sensors to determine the atmospheric distortion due to atmospheric turbulence. The GRAVITY AO system will then drive the VLT's MACAO deformable mirrors to correct the wavefront, permiting 10 micro-arcsecond astrometry. We present the current design and status of the wave front sensor system, as well as future plans for integration and test.

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