Search for planets around M dwarfs 

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Table of contents

1 Introduction 
1.1 Where are we?
1.2 A new era in Astronomy: extra-solar planets
1.2.1 First ideas…then the detection
1.2.2 Current techniques
1.3 The radial velocity method
1.3.1 Orbital parameters
1.3.2 Doppler spectroscopy and the cross-correlation function
1.3.3 Limitations and diculties of the radial velocities method
1.3.4 Radial velocities surveys
2 Search for planets around M dwarfs 
2.1 Basic properties of M dwarfs
2.1.1 M dwarfs activity
2.1.2 Extra-solar planets around M dwarfs
2.2 This thesis
3 The R0H K-index in M darfs 
3.1 Dynamo processes
3.2 Stellar activity diagnostics
3.3 Stellar activity and planets detection
3.4 Calibrating the R0HK-index (paper)
4 Optimise radial velocity extraction 
4.1 2-minimisation method
4.1.1 Read data
4.1.2 Building the stellar template
4.1.3 Calculating radial velocities: 2-minimisation
4.1.4 Fraction of rejected wavelength region
4.1.5 Performances
4.2 Applications
4.2.1 Telluric correction
4.2.2 A complete analysis of the radial velocities of GJ 3293, GJ 3341 and GJ 3543
5 Conclusions and future prospects