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Proceedings Paper

Exoplanet atmospheres Characterization Observatory payload short-wave infrared channel: EChO SWiR
Author(s): Gonzalo Ramos Zapata; Tomás Belenguer; Ana Balado; José Miguel Encinas; Iñaki Armendáriz; Ángel Carretero; César Arza; María Ángeles Alcacera; José A. Fernández; Elisa Muñoz; Giovanna Tinetti; Paul Eccleston; Bruce Swinyard; Kevin Middleton; Ian Bryson; María Rosa Zapatero
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Paper Abstract

EChO (Exoplanet atmospheres Characterization Observatory), a proposal for exoplanets exploration space mission, is considered the next step for planetary atmospheres characterization. It would be a dedicated observatory to uncover a large selected sample of planets spanning a wide range of masses (from gas giants to super-Earths) and orbital temperatures (from hot to habitable). All targets move around stars of spectral types F, G, K, and M. EChO would provide an unprecedented view of the atmospheres of planets in the solar neighbourhood. The consortium formed by various institutions of different countries proposed as ESA M3 an integrated spectrometer payload for EChO covering the wavelength interval 0.4 to 16 µm. This instrument is subdivided into 4 channels: a visible channel, which includes a fine guidance system (FGS) and a VIS spectrometer, a near infrared channel (SWiR), a middle infrared channel (MWiR), and a long wave infrared module (LWiR). In addition, it contains a common set of optics spectrally dividing the wavelength coverage and injecting the combined light of parent stars and their exoplanets into the different channels. The proposed payload meets all of the key performance requirements detailed in the ESA call for proposals as well as all scientific goals. EChO payload is based on different spectrometers covering the spectral range mentioned above. Among them, SWiR spectrometer would work from 2.45 microns to 5.45 microns. In this paper, the optical and mechanical designs of the SWiR channel instrument are reported on.

Paper Details

Date Published: 28 August 2014
PDF: 9 pages
Proc. SPIE 9143, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave, 91432G (28 August 2014); doi: 10.1117/12.2054876
Show Author Affiliations
Gonzalo Ramos Zapata, Instituto Nacional de Técnica Aeroespacial (Spain)
Tomás Belenguer, Instituto Nacional de Técnica Aeroespacial (Spain)
Ana Balado, Instituto Nacional de Técnica Aeroespacial (Spain)
José Miguel Encinas, Instituto Nacional de Técnica Aeroespacial (Spain)
Iñaki Armendáriz, Instituto Nacional de Técnica Aeroespacial (Spain)
Ángel Carretero, Instituto Nacional de Técnica Aeroespacial (Spain)
César Arza, Instituto Nacional de Técnica Aeroespacial (Spain)
María Ángeles Alcacera, Instituto Nacional de Técnica Aeroespacial (Spain)
José A. Fernández, Instituto Nacional de Técnica Aeroespacial (Spain)
Elisa Muñoz, Instituto Nacional de Técnica Aeroespacial (Spain)
Giovanna Tinetti, Univ. College London (United Kingdom)
Paul Eccleston, Rutherford Appleton Lab. (United Kingdom)
Bruce Swinyard, Univ. College London (United Kingdom)
Rutherton Appleton Lab. (United Kingdom)
Kevin Middleton, Rutherford Appleton Lab. (United Kingdom)
Ian Bryson, UK Astronomy Technology Ctr. (United Kingdom)
María Rosa Zapatero, Ctr. de Astrobiología (Spain)


Published in SPIE Proceedings Vol. 9143:
Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave
Jacobus M. Oschmann; Mark Clampin; Giovanni G. Fazio; Howard A. MacEwen, Editor(s)

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