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Proceedings Paper

An integrated payload design for the Exoplanet Characterisation Observatory (EChO)
Author(s): Bruce Swinyard; Giovanna Tinetti; Paul Eccleston; Alberto Adriani; Jean-Philippe Beaulieu; Tomas Belenguer Davila; Neil Bowles; Ian Bryson; Vincent Coudé du Foresto; Marc Ferlet; Paul Hartogh; Pierre-Olivier Lagage; Tanya Lim; Giuseppe Malaguti; Mercedes López-Morales; Giuseppina Micela; Gianluca Morgante; Hans Ulrik Nørgaard-Nielsen; Marc Ollivier; Emanuele Pace; Enzo Pascale; Giuseppe Piccioni; Gonzalo Ramos Zapata; Jean-Michel Reess; Ignasi Ribas; Alessandro Sozzetti; Jonathan Tennyson; Marcell Tessenyi; Mark R. Swain; Berend Winter; Ingo Waldmann; Gillian Wright; Maria-Rosa Zapatero Osorio; Athena Coustenis
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Paper Abstract

The Exoplanet Characterisation Observatory (EChO) is a space mission dedicated to undertaking spectroscopy of transiting exoplanets over the widest wavelength range possible. It is based around a highly stable space platform with a 1.2 m class telescope. The mission is currently being studied by ESA in the context of a medium class mission within the Cosmic Vision programme for launch post 2020. The payload suite is required to provide simultaneous coverage from the visible to the mid-infrared and must be highly stable and effectively operate as a single instrument. In this paper we describe the integrated spectrometer payload design for EChO which will cover the 0.4 to 16 micron wavelength band. The instrumentation is subdivided into 5 channels (Visible/Near Infrared, Short Wave InfraRed, 2 x Mid Wave InfraRed; Long Wave InfraRed) with a common set of optics spectrally dividing the input beam via dichroics. We discuss the significant design issues for the payload and the detailed technical trade-offs that we are undertaking to produce a payload for EChO that can be built within the mission and programme constraints and yet which will meet the exacting scientific performance required to undertake transit spectroscopy.

Paper Details

Date Published: 21 September 2012
PDF: 14 pages
Proc. SPIE 8442, Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave, 84421G (21 September 2012); doi: 10.1117/12.924688
Show Author Affiliations
Bruce Swinyard, Univ. College London (United Kingdom)
Rutherford Appleton Lab. (United Kingdom)
Giovanna Tinetti, Univ. College London (United Kingdom)
Paul Eccleston, Rutherford Appleton Lab. (United Kingdom)
Alberto Adriani, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Jean-Philippe Beaulieu, Institut d'Astrophysique, CNRS, Univ. Paris VI (France)
Tomas Belenguer Davila, Instituto Nacional de Técnica Aeroespacial (Spain)
Neil Bowles, Oxford Univ. (United Kingdom)
Ian Bryson, UK Astronomy Technology Ctr., Royal Observatory (United Kingdom)
Vincent Coudé du Foresto, LESIA, CNRS, Observatoire de Paris (France)
Marc Ferlet, Rutherford Appleton Lab. (United Kingdom)
Paul Hartogh, Max-Planck-Institute for Solar System Research (Germany)
Pierre-Olivier Lagage, Service d'Astrophysique, CEA-Saclay (France)
Tanya Lim, Rutherford Appleton Lab. (United Kingdom)
Giuseppe Malaguti, INAF - IASF Bologna (Italy)
Mercedes López-Morales, Institut de Ciencies de l'Espai (Spain)
Giuseppina Micela, INAF - Osservatorio Astronomico di Palermo (Italy)
Gianluca Morgante, INAF - IASF Bologna (Italy)
Hans Ulrik Nørgaard-Nielsen, DTU Space (Denmark)
Marc Ollivier, Institut d'Astrophysique Spatiale, CNRS, Univ. de Paris-Sud (France)
Emanuele Pace, Univ. degli studi di Firenze (Italy)
Enzo Pascale, Cardiff Univ. (United Kingdom)
Giuseppe Piccioni, INAF - Istituto di Astrofisica e Planetologia Spaziali (Italy)
Gonzalo Ramos Zapata, Instituto Nacional de Técnica Aeroespacial (Spain)
Jean-Michel Reess, LESIA, CNRS, Observatoire de Paris (France)
Ignasi Ribas, Institut de Ciencies de l'Espai (Spain)
Alessandro Sozzetti, INAF- Osservatorio Astrofisico di Torino (Italy)
Jonathan Tennyson, Univ. College London (United Kingdom)
Marcell Tessenyi, Univ. College London (United Kingdom)
Mark R. Swain, Jet Propulsion Lab. (United States)
Berend Winter, Mullard Space Science Lab., Univ. College London (United Kingdom)
Ingo Waldmann, Univ. College London (United Kingdom)
Gillian Wright, UK Astronomy Technology Ctr., Royal Observatory (United Kingdom)
Maria-Rosa Zapatero Osorio, Ctr. de Astrobiología, Instituto Nacional de Técnica Aeroespacial (Spain)
Athena Coustenis, LESIA, CNRS, Observatoire de Paris (France)


Published in SPIE Proceedings Vol. 8442:
Space Telescopes and Instrumentation 2012: Optical, Infrared, and Millimeter Wave
Mark C. Clampin; Giovanni G. Fazio; Howard A. MacEwen; Jacobus M. Oschmann, Editor(s)

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