Characterizing exoplanets in the visible and infrared: A spectrometer concept for the EChO space mission
Artikel i vetenskaplig tidskrift, 2013
Transit-spectroscopy of exoplanets is one of the key observational techniques used to characterize extrasolar planets and their atmospheres. The observational challenges of these measurements require dedicated instrumentation and only the space environment allows undisturbed access to earth-like atmospheric features such as water or carbon dioxide. Therefore, several exoplanet-specific space missions are currently being studied. One of them is EChO, the Exoplanet Characterization Observatory, which is part of ESA's Cosmic Vision 2015-2025 program, and which is one of four candidates for the M3 launch slot in 2024. In this paper we present the results of our assessment study of the EChO spectrometer, the only science instrument onboard this spacecraft. The instrument is a multi-channel all-reflective dispersive spectrometer, covering the wavelength range from 400 nm to 16μm simultaneously with a moderately low spectral resolution. We illustrate how the key technical challenge of the EChO mission - the high photometric stability - influences the choice of spectrometer concept and fundamentally drives the instrument design. First performance evaluations underline the suitability of the elaborated design solution for the needs of the EChO mission.
space vehicles: Instruments
instrumentation: Spectrographs
Planetary systems
Författare
A. M. Glauser
Max-Planck-Gesellschaft
R. Van Boekel
Max-Planck-Gesellschaft
O. Krause
Max-Planck-Gesellschaft
T. Henning
Max-Planck-Gesellschaft
B. Benneke
Massachusetts Institute of Technology (MIT)
J. Bouwman
Max-Planck-Gesellschaft
P. E. Cubillos
University of Central Florida
Max-Planck-Gesellschaft
I. J.M. Crossfield
Max-Planck-Gesellschaft
O. Detre
Max-Planck-Gesellschaft
M. Ebert
Max-Planck-Gesellschaft
U. Grözinger
Max-Planck-Gesellschaft
M. Gudel
Universität Wien
J. Harrington
University of Central Florida
Max-Planck-Gesellschaft
Kay Justtanont
Astronomi och plasmafysik
U. Klaas
Max-Planck-Gesellschaft
R. Lenzen
Max-Planck-Gesellschaft
N. Madhusudhan
Yale University
M. Meyer
Eidgenössische Technische Hochschule Zürich (ETH)
C. Mordasini
Max-Planck-Gesellschaft
F. Muller
Max-Planck-Gesellschaft
R. Ottensamer
Universität Wien
J. Y. Plesseria
Universite de Liège
S. P. Quanz
Eidgenössische Technische Hochschule Zürich (ETH)
A. Reiners
Georg-August-Universität Göttingen
E. Renotte
Universite de Liège
R. R. Rohloff
Max-Planck-Gesellschaft
S. Scheithauer
Max-Planck-Gesellschaft
H. M. Schmid
Eidgenössische Technische Hochschule Zürich (ETH)
J. R. Schrader
Netherlands Institute for Space Research (SRON)
U. Seemann
Georg-August-Universität Göttingen
D. Stam
Netherlands Institute for Space Research (SRON)
B. Vandenbussche
KU Leuven
U. Wehmeier
Eidgenössische Technische Hochschule Zürich (ETH)
Journal of Astronomical Instrumentation
22511717 (ISSN) 22511725 (eISSN)
Vol. 2 1 1350004Ämneskategorier
Rymd- och flygteknik
Övrig annan teknik
Människa-datorinteraktion (interaktionsdesign)
Infrastruktur
Onsala rymdobservatorium
DOI
10.1142/S2251171713500049