Optimal interferometric data acquisition and processing: towards 0.1% precision with the single-mode beam combiner VINCI

Details Optimal interferometric data acquisition and processing: towards 0.1% precision with the single-mode beam combiner VINCI Optimal interferometric data acquisition and processing: towards 0.1% precision with the single-mode beam combiner VINCI

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5491..741k&link_type=abstract

New Frontiers in Stellar Interferometry, Proceedings of SPIE Volume 5491. Edited by Wesley A. Traub. Bellingham, WA: The Intern

Physics

3

Scientific paper

Though interferometric techniques are now used routinely around the world, the processing of interferometric data is still the subject of active research. In particular, the corruption of the interferometric fringes by the turbulent atmosphere is currently the most critical limitation to the precision of the ground-based interferometric measurements. In this paper, we discuss the data acquisition and processing procedures of the VINCI/VLTI instrument. Optimal data acquisition parameters and wavelets based processing allow us to remove a posteriori part of the data corrupted by atmospheric turbulence. A relative precision better than 0.1% on the instrumental visibility (for a 5 minutes observation) was already achieved on bright stars without fringe stabilization. Using a dedicated fringe tracker, an even better precision, of the order of a few 10-4, appears to be within reach. However, we show in this paper that the calibration of the instrumental visibility measurements can easily be the source of significant systematic errors beyond this statistical precision.

Affiliated with

Also associated with

No associations

Rating

Optimal interferometric data acquisition and processing: towards 0.1% precision with the single-mode beam combiner VINCI does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Optimal interferometric data acquisition and processing: towards 0.1% precision with the single-mode beam combiner VINCI, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal interferometric data acquisition and processing: towards 0.1% precision with the single-mode beam combiner VINCI will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1810363