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Table of contents
1 Introduction
2 Characterization of cameras and time acquisition
2.1 Conversion factor and read-out noise
2.1.1 CMOS camera
2.1.2 EMCCD camera
2.2 Dead times
2.2.1 CMOS camera
2.2.2 Kite camera
2.3 Accuracy of time registration
2.4 Test at the sky and SNR estimation
3 Physical characterization by stellar occultations
3.1 2007 UK126 and 2003 AZ84
3.1.1 Stellar occultation by 2007 UK126
3.1.2 Stellar occultation by 2003 AZ84
3.2 Size and shape from multi-epoch stellar occultations
3.2.1 Body models
3.2.2 Bayesian approach
3.2.3 Shape and size of the Centaur object (10199) Chariklo
4 The dynamics of rings around a non-spherical body
4.1 Two simple cases of non axisymmetric potential
4.2 Lindblad resonances
4.2.1 Single-mass anomaly
4.2.2 Triaxial ellipsoid
4.2.3 Summary of the section
4.3 Corotation resonance
4.3.1 Azimuthal dependence of the corotation potential
4.3.2 Stability of the corotation fixed points
4.4 Evolution of a debris disk: Lindblad resonances
4.4.1 Torques at Lindblad resonances
4.4.2 Angular momentum deposition
4.4.3 Truncation of the disk
4.4.4 Clearing the corotation zone: time scales
4.5 Applications to Chariklo’s ring system
4.5.1 Lindblad resonances
4.5.2 Corotation resonances
4.6 Discussion
5 Conclusions




