EAS Publications Series

Table of Contents - 2006 - Volume 22, Astronomy with High Contrast Imaging III: Instrumental Techniques, Modeling and Data Processing  

Research Article

Earth-like planet detection with Extremely Large Telescopes

Astronomy with High Contrast Imaging III: Instrumental Techniques, Modeling and Data Processing, Nice and Fréjus, France.

C. Cavarroca1, A. Boccalettia1, P. Baudoza1, T. Fuscoa2 and D. Rouana1

a1 Observatoire de Paris-Meudon, France

a2 ONERA, France

Abstract

Direct detection of Earth-like planets is one of the major objectives for the next generation of ground based telescopes (Extremely Large Telescopes, ELT). ELT instruments will be conditionned by such scientific programs. Here, we consider here a system made with an adaptive optics device, a coronagraph and a simultaneous calibration system. We refined this simple model by including static aberrations upstream the coronagraph and differential aberrations downstream. Using numerical simulations, we evaluate how these static aberrations limit the detectability of telluric planets.

(Online publication October 13 2006)