Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985a%26a...153...91k&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 153, no. 1, Dec. 1985, p. 91-98. In French.
Astronomy and Astrophysics
Astrophysics
28
Astrometry, Diameters, Interferometry, Stars, Fourier Transformation, Image Contrast, Image Processing
Scientific paper
The "small" interferometer at CERGA with baselines spanning from 6 to 67 meters has been providing for several years high angular resolution measurements of stars. Up to recently the fringe's contrast was estimated visually. Now, a new system for image processing is able to compute the contrast from fringe-patterns received on a photon-counting TV camera. On-line measurements are made by Fourier transform and their reliability has been improved by both new features in the experimental device and the new method for data recording and processing. The authors present here a short description of the present instrumental configuration as well as the principle of the overall data processing. In addition angular diameters thus obtained on four stars (α Cyg, ɛ Cyg, β And, α Per) are given as a result of a first observing run with the new system.
Koechlin Laurent
Rabbia Yves
No associations
LandOfFree
Stellar diameter measurements with the CERGA optical interferometer - Recent developments and results 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 Stellar diameter measurements with the CERGA optical interferometer - Recent developments and results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar diameter measurements with the CERGA optical interferometer - Recent developments and results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1159233