Echoes: a new instrumental concept of Doppler Spectro-Imager for the ESA mission project JUICE

Soulat, L.; Schmider, F. X.; Robbe-Dubois, S.; Appourchaux, T.; Bresson, Y.; Daban, J.-B.; Gaulme, P.; Gouvret, Carole

doi:10.1117/12.896710

Cited by 4 publications

(3 citation statements)

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“…A Doppler imaging camera for Jupiter seismology was proposed as a payload for the ESA JUICE mission (Soulat et al 2011), but ultimately not selected. Given that Juno, a general purpose mission is currently active in the Jupiter system and two flagship class orbiter missions (JUICE and Europa Clipper) are due to launch until 2025 (although both focused on the icy moons), the need for another large Jupiter orbiter has not been foreseen by the Decadal Survey.…”

Section: Mission Perspectivesmentioning

confidence: 99%

Seismology in the Solar System

Stähler¹,

Knapmeyer²

2022

Preprint

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Section: Mission Perspectivesmentioning

confidence: 99%

Seismology in the Solar System

Stähler¹,

Knapmeyer²

2022

Preprint

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“…Studies of that instrument were initially undertaken for the Laplace space mission, which was selected as an ESA Large mission under the name JUICE (JUpiter ICy moons Explorer). The DSI instrument was proposed to study the formation and evolution of Jupiter's system 1 . Although the instrument was not selected for the final payload of the space mission, the R&T was continued and a prototype of the instrument was realized in view of ground based observations.…”

Section: Introductionmentioning

confidence: 99%

Advances in the development of a Mach-Zehnder interferometric Doppler imager for seismology of giant planets

et al. 2016

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The measurements of radial velocity fields on planets with a Doppler Spectro-Imager allow the study of atmospheric dynamics of giant planets and the detection of their acoustic oscillations. The frequencies of these oscillations lead to the determination of the internal structure by asteroseismology. A new imaging tachometer, based on a Mach-Zehnder interferometer, has been developed to monitor the Doppler shift of solar lines reflected at the surface of the planets. We present the principle of this instrument. A prototype was designed and built, following the specifications of a future space mission. The performance of the prototype, both at the laboratory and on the sky, is presented here.

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“…In this paper, we present the prototype of the Doppler SpectroImager Echoes [8]. The instrument principle is directly inherited from SYMPA.…”

mentioning

confidence: 99%

Conception and test of echoes, a spectro-imager dedicated to the seismology of Jupiter

Soulat

Schmider

Robbe-Dubois

et al. 2017

International Conference on Space Optics — ICSO 2012

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Echoes is a project of a spaceborne Doppler Spectro-Imager (DSI) which has been proposed as payload to the JUICE mission project selected in the Cosmic Vision program of the European Space Agency (ESA). It is a Fourier transform spectrometer which measures phase shifts in the interference patterns induced by Doppler shifts of spectral lines reflected at the surface of the planet. Dedicated to the seismology of Jupiter, the instrument is designed to analyze the periodic movements induced by internal acoustic modes of the planet. It will allow the knowledge of the internal structure of Jupiter, in particular of the central region, which is essential for the comprehension of the scenario of the giant planets' formation. The optical design is based on a modified Mach-Zehnder interferometer operating in the visible domain and takes carefully into account the sensitivity of the optical path difference to the temperature. The instrument produces simultaneously four images in quadrature which allows the measurement of the phase without being contaminated by the continuum component of the incident light. We expect a noise level less than 1 cm²s -²μHz -1 in the frequency range [0.5 -10] mHz. In this paper, we present the prototype implemented at the Observatoire de la Côte d'Azur (OCA) in collaboration with Institut d'Astrophysique Spatiale (IAS) to study the real performances in laboratory and to demonstrate the capability to reach the required Technology Readiness Level 5.

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Echoes: a new instrumental concept of Doppler Spectro-Imager for the ESA mission project JUICE

Cited by 4 publications

References 1 publication

Seismology in the Solar System

Seismology in the Solar System

Advances in the development of a Mach-Zehnder interferometric Doppler imager for seismology of giant planets

Conception and test of echoes, a spectro-imager dedicated to the seismology of Jupiter

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