Exoplanet atmospheres Characterization Observatory payload short-wave infrared channel: EChO SWiR



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Ramos Zapata, Gonzalo and Belenguer Dávila, Tomás and Balado, Ana and Encinas, José M. and Armendáriz, Iñaki and Carretero, Ángel and Arza, César and Alcacera, María A. and Fernández, José A. and Muñóz, Elisa and Tinetti, Giovanna and Eccleston, Paul and Swinyard, Bruce and Middleton, Kevin and Bryson, Ian and Zapatero, Mª Rosa (2014) Exoplanet atmospheres Characterization Observatory payload short-wave infrared channel: EChO SWiR. In Proceedings of SPIE, Space Telescopes and Instrumentation 2014: Optical, Infrared, and Millimeter Wave. Proceedings of SPIE, 9143 . SPIE. ISBN 978-081949611-9

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Official URL: http://dx.doi.org/10.1117/12.2054876


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.

Item Type:Book Section
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ISSN: 0277-786X
Copyright 2014. Society of Photo Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Uncontrolled Keywords:Exoplanets, Atmospheres, Payload, Infrared, Spectrometer.
Subjects:Sciences > Physics > Astrophysics
Sciences > Physics > Electromagnetism
ID Code:40652
Deposited On:10 Jan 2017 13:32
Last Modified:10 Jan 2017 13:32

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