Physics
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006spie.6268e..10i&link_type=abstract
Advances in Stellar Interferometry. Edited by Monnier, John D.; Schöller, Markus; Danchi, William C.. Proceedings of the SPIE,
Physics
7
Scientific paper
Several existing interferometers have taken large V2 data sets without the use of spatial filters. The calibration of this kind of data is always seeing and alignment-dependent, and can result in significant systematic errors if several ideal calibrators are not available. I will demonstrate how high-precision unbiased estimates of V2 can still be retrieved from this kind of data by using one of several simple seeing corrections. In particular, I will demonstrate the success of these techniques on data sets from the SUSI interferometer and non-redundant masking experiments, and also discuss their limitations. One of the techniques described can also aid in the calibration of low S/N spatially-filtered data.
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