Computer Science
Scientific paper
Oct 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5491.1185m&link_type=abstract
New Frontiers in Stellar Interferometry, Proceedings of SPIE Volume 5491. Edited by Wesley A. Traub. Bellingham, WA: The Intern
Computer Science
1
Scientific paper
We present a catalog of reference stars suitable for calibrate long baseline interferometric observations in the infrared. This work includes and extends the previous catalog by Bordé et al. (2002): in the K band, a precision of 1 % or better can be achieved on the visibility with interferometric baselines up to ˜ 200 meters instead of ˜ 100 in the preceding version. Angular diameters are computed by way of the absolute spectro-photometric calibration method proposed by Cohen et al. (1999), using IRAS and 2MASS photometric measurements. Our updated catalog contains G8--M0 stars with angular diameters 0.6--1.8 mas (median 1.1 mas) and a median error of 2.1 %. The median magnitudes are 3.5 in K and 6.5 in V. Our grid is dense enough that one would find a calibrator star closer than 10 degrees to any direction on the sky.
Borde' Pascal
Coudé du Foresto Vincent
Mérand Antoine
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