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AO Assisted NIR 3D Spectroscopic Imaging – Can an ELT See the Earth at 10pc?

Published online by Cambridge University Press:  02 May 2006

Markus Feldt ,
Alessandro Berton ,
Thomas Henning ,
Raffaele Gratton ,
Massimo Turatto ,
H. M. Schmid ,
M. Kasper  and
J. L. Beuzit
Markus Feldt
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany email: mfeldt@mpia.de
Alessandro Berton
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany email: mfeldt@mpia.de
Thomas Henning
Affiliation:
Max Planck Institute for Astronomy, Königstuhl 17, D-69117 Heidelberg, Germany email: mfeldt@mpia.de
Raffaele Gratton
Affiliation:
Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy, email: gratton@astro.pd.it
Massimo Turatto
Affiliation:
Osservatorio Astronomico di Padova, Vicolo dell'Osservatorio 5, I-35122 Padova, Italy, email: gratton@astro.pd.it
H. M. Schmid
Affiliation:
Institut für Astronomie, ETH Zentrum, CH-8092 Zürich, Switzerland email: schmid@astro.phys.ethz.ch
M. Kasper
Affiliation:
European Southern Observatory, Karl-Schwarzschild-Straße 2, D-85748 Garching, Germany email: mkasper@eso.org
J. L. Beuzit
Affiliation:
Laboratoire d'Astrophysique, Observatoire de Grenoble, BP 53, F-38041 Grenoble Cédex 9, France email: Jean-Luc.Beuzit@obs.ujf-grenoble.fr
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Abstract

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The European southern observatory ESO is currently undertaking the ambitious task of building a “Planet Finder” instrument for the VLT. The concept for this instrument includes a 3D spectroscopic imager assisted by a very powerful eXtreme AO system. In one of the two phase-A studies for this project, we have developed a simulation software for this kind of instrument which has now been extended and applied to the case of various ELTs. In this presentation, we give results of simulations and discuss achievable signal to noise ratios and prospects for detection and characterization from young gas giants down to terrestrial type planets. ELTs of various diameters are considered as well as a set of environmental conditions.

Keywords

instrumentation: spectrographsmethods: data analysistechniques: high angular resolutiontechniques: spectroscopic(stars:) planetary systems
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C200: Direct Imaging of Exoplanets: Science & Techniques , October 2005 , pp. 495 - 500
Copyright
© 2006 International Astronomical Union