An integrated payload design for the Exoplanet Characterisation Observatory (EChO)

Bruce Swinyard, Giovanna Tinetti, Jonathan Tennyson, Marcell Tessenyi, Ingo Waldmann, Bruce Swinyard, Paul Eccleston, Marc Ferlet, Tanya Lim, Alberto Adriani, Giuseppe Piccioni, Jean-Philippe Beaulieu, Tomas Belenguer Davila, Gonzalo Ramos Zapata, Neil Bowles, Ian Bryson, Gillian Wright, Athena Coustenis, Vincent Coudé Du Foresto, Jean-Michel ReessPaul Hartogh, Pierre-Olivier Lagage, Giuseppe Malaguti, Gianluca Morgante, Mercedes López-Morales, Ignasi Ribas, Giuseppina Micela, Hans Ulrik Nørgaard-Nielsen, Marc Ollivier, Emanuele Pace, Enzo Pascale, Alessandro Sozzetti, Mark R. Swain, Berend Winter, Maria-Rosa Zapatero Osorio

Research output: Contribution to journalConference articleResearchpeer-review

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. © 2012 SPIE.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume8442
Pages (from-to)84421G
Number of pages14
ISSN0277-786X
DOIs
Publication statusPublished - 2012
EventSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray - Amsterdam RAI Convention Ctr., Amsterdam, Netherlands
Duration: 1 Jul 20126 Jul 2012
Conference number: 8443

Conference

ConferenceSpace Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Number8443
LocationAmsterdam RAI Convention Ctr.
CountryNetherlands
CityAmsterdam
Period01/07/201206/07/2012

Keywords

  • Astronomy
  • Buildings
  • Design
  • Infrared radiation
  • Millimeter waves
  • Observatories
  • Space flight
  • Space platforms
  • Space telescopes
  • Spectrometers
  • Instruments

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