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.
    Country/TerritoryNetherlands
    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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