System design and analysis of the exo-planet imaging camera and spectrograph (EPICS) for the European ELT

One of the main science objectives of the European ELT is the direct imaging of extrasolar planets. The large aperture of the telescope has the potential to significantly enlarge the discovery space towards older gas giant exo-planets seen in reflected light. In this paper, we give an overview of the EPICS system design strategy during the phase A study. In order to tackle the critical limitations to high contrast, extensive end-to-end simulations will be developed since the start to test different scenarios and guide the overall design.

[1]  J.-L. Beuzit,et al.  SPHERE IFS optical concept description and design overview , 2008, Astronomical Telescopes + Instrumentation.

[2]  R. Galicher,et al.  Expected performance of a self-coherent camera , 2007 .

[3]  Pierre Baudoz,et al.  Self-Coherent Camera: active correction and post-processing for Earth-like planet detection , 2008, Astronomical Telescopes + Instrumentation.

[4]  P. Murdin.  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY , 2005 .

[5]  Miska Le Louarn,et al.  Improving the performance of a pyramid wavefront sensor with modal sensitivity compensation. , 2008, Applied optics.

[6]  R. Galicher,et al.  Wavefront error correction and Earth-like planet detection by a self-coherent camera in space , 2008, 0807.2467.

[7]  T. Fusco,et al.  Fundamental limitations on Earth-like planet detection with extremely large telescopes , 2005 .

[8]  R. Ragazzoni.  Pupil plane wavefront sensing with an oscillating prism , 1996 .

[9]  Graeme Salter,et al.  Exploring high contrast limitations for image slicer-based integral field spectrographs , 2008, Astronomical Telescopes + Instrumentation.

[10]  Pierre Baudoz,et al.  Post-coronagraphic wave-front sensing for the exo-planet imaging camera and spectrograph, EPICS for the European ELT , 2008, Astronomical Telescopes + Instrumentation.

[11]  Pierre Baudoz,et al.  EPICS: the exoplanet imager for the E-ELT , 2008, Astronomical Telescopes + Instrumentation.

[12]  Pierre Baudoz,et al.  The Self-Coherent Camera: a new tool for planet detection , 2005, Proceedings of the International Astronomical Union.

[13]  Jean-Pierre Veran,et al.  Analytical model for Shack-Hartmann-based adaptive optics systems , 1998, Astronomical Telescopes and Instrumentation.

[14]  Gordon D. Love,et al.  High order test bench for extreme adaptive optics system optimization , 2008, Astronomical Telescopes + Instrumentation.

[15]  J. Spyromilio,et al.  The European Extremely Large Telescope (E-ELT) , 2007 .