Abstract
This course describes the data reduction process of the AMBER instrument, the three-beam recombiner of the Very Large Telescope Interferometer (VLTI). We develop its principles from a theoretical point of view, and we illustrate the main points with examples taken from AMBER real observations. We particularly emphasize that the AMBER data reduction process is (i) a fit of the interferogram in the detector plane, (ii) using an a priori calibration of the instrument, where (iii) the complex visibility of the source is estimated from a least-square determination of a linear inverse problem, and where (iv) the derived AMBER observables are the squared visibility, the closure phase, and the spectral differential phase.
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References
Chelli, A., Petrov, R.G.: Model fitting and error analysis for differential interferometry. I. General formalism. A&AS 109, 389–399 (1995)
Connes, P., Shaklan, S., Roddier, F.: A Fiber-Linked Groundbased Array. In: Goad, J.W. (ed.) Interferometric Imaging in Astronomy, pp. 165–+ (1987)
Coudé du Foresto, V., Faucherre, M., Hubin, N., Gitton, P.: Using single-mode fibers to monitor fast Strehl ratio fluctuations. Application to a 3.6 m telescope corrected by adaptive optics. A&AS 145, 305–310 (2000)
Coudé Du Foresto, V., Ridgway, S., Mariotti, J.M.: Deriving object visibilities from interferograms obtained with a fiber stellar interferometer. A&AS 121, 379–392 (1997)
Dyer, S.D., Christensen, D.A.: Pupil-size effects in fiber optic stellar interferometry. Opt. Soc. of Am. J. A 16, 2275–2280 (1999)
Mège, P., Malbet, F., Chelli, A.: Stellar Interferometry with optical waveguides. In: Societe Francaise d’Astronomie et d’Astrophysique (ed.) SF2A-2001: Semaine de l’Astrophysique Francaise, pp. 581–+ (2001)
Mège, P., Malbet, F., Chelli, A.: Interferometry with single mode waveguide. In: Traub, W.A. (ed.) Interferometry for Optical Astronomy II. Edited by Wesley A. Traub. Proceedings of the SPIE, Vol. 4838, pp. 329-337 (2003)., pp. 329–337 (2003)
Meilland, A., The AMBER consortium: First direct detection of a Keplerian rotating disk around the Be star α Arae using the VLTI/AMBER instrument. A&Ap p. 4848 (2007)
Monnier, J.D.: An Introduction to Closure Phases. In: Lawson, P.R. (ed.) Principles of Long Baseline Stellar Interferometry, pp. 203–+ (2000)
Papoulis, A.: Probability, Random Variables and Stochastic Processes. New York: McGraw-Hill, 1984, 2nd ed. (1984)
Perrin, G.: Subtracting the photon noise bias from single-mode optical interferometer visibilities. A&Ap 398, 385–390 (2003). DOI 10.1051/0004-6361:20021667
Petrov, R.G., the AMBER consortium: AMBER, the near infrared spectro-interferometric three telescopes VLTI instrument. A&Ap 6496 (2007)
Roddier, F.: Triple correlation as a phase closure technique. Opt. Commun. 60, 145–148 (1986). DOI 10.1016/0030-4018(86)90168-9
Tatulli, E., LeBouquin, J.B.: Comparison of Fourier and model-based estimators in single-mode multi-axial interferometry. MNRAS 368, 1159–1168 (2006). DOI10.1111/j.1365-2966.2006.10203.x
Tatulli, E., Mège, P., Chelli, A.: Single-mode versus multimode interferometry: A performance study. A&A 418, 1179–1186 (2004). DOI10.1051/0004-6361:20034090
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Tatulli, E., Malbet, F., Duvert, G. (2008). Presentation of AMBER/VLTI Data Reduction. In: Bacciotti, F., Testi, L., Whelan, E. (eds) Jets from Young Stars II. Lecture Notes in Physics, vol 742. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-68032-1_12
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DOI: https://doi.org/10.1007/978-3-540-68032-1_12
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