S. de Raucourt

Comparative Study of Ultra-Precise Optical Displacement Sensing Techniques: From Planetary Seismology to Geosciences Applications

Ilyes Daddi Hammou, Mathieu Feuilloy, Philippe Ménard, Alban Leleux et autres

Optical sensing technologies are increasingly pivotal in geosciences and planetary exploration, where ultra-precise displacement measurements are essential for understanding seismic activity, subsurface dynamics, and environmental monitoring. This work presents a comparative analysis of two advanced optical measurement techniques developed in parallel by …

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Ultra-high performance gyroscopes for future X-ray interferometer missions

Andreas Brotzer, Felix Bernauer, Frédéric Guattari, Leszek R. Jaroszewicz et autres

X-ray interferometry holds the potential to image astronomical objects with unprecedented, microarcsecond (μas) resolution, where 1 μas corresponds to 4.8 prad. This target resolution imposes extreme requirements for the accuracy of the spacecraft‘s attitude measurement when operating the X-ray interferometer.Typically, the orientation …

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Lunar Optical Very Broad Band: a high-performance seismometer for Moon deep interior study

S. de Raucourt, Frédéric Guattari, Gabrielle Chabaud, M. Drilleau et autres

More than 50 years after Apollo, the Moon deep interior structure is still not well known. Several seismic experiments are expected on the Moon surface in the coming year (Chang’e 7, Chandrayan, Artemis III, FSS and SPSS). All of those seismometers are …

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European Collaboration for Lunar Investigation with Planetary Seismology and Electromagnetism (ECLIPSE): A European Initiative to Strengthen the International Lunar Seismic Network

M. Drilleau, Fabio Ferrari, Özgür Karatekin, Taïchi Kawamura et autres

Introduction:In response to the exploratory call for missions within ESA’s science program, we propose the ECLIPSE mission to deploy a European geophysical station with seismometers and electromagnetic sensors on the lunar surface. Although data from the Apollo seismic network and subsequent geodetic …

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Remote optical interferometric displacement technology development for planetology

Frédéric Guattari, S. de Raucourt, Gabrielle Chabaud, S. Tillier et autres

The Apollo seismic experiment yielded unique seismology data from the Moon. Howeverunderstanding of the Moon’s interior structure remains constrained by the limitations of theApollo’s sensors. Fifty years later, the Mars seismometer Insight/SEIS demonstrated reducedself-noise and enhanced resolution. A spare model will be …

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DAS system for the Moon

Benoît Tauzin, Philippe Lognonné, Taïchi Kawamura, M. P. Panning et autres

Active seismic experiments during the Apollo missions characterized the lunar regolith and crust, while passive monitoring suggested a thermal stress origin for the high-frequency lunar seismic noise. Deploying Distributed Acoustic Sensing (DAS) instruments, capable of withstanding the extreme lunar conditions, would allow …

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The In Situ Evaluation of the SEIS Noise Model

Baptiste Pinot, D. Mimoun, Naomi Murdoch, Keisuke Onodera et autres

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Lander Induced Thermo-Elastic Noise at InSight Location on Mars

Sreejaya Kizhaekke Pakkathillam, Philippe Lognonné, S. de Raucourt, Taïchi Kawamura

Understanding the intricate thermal dynamics on Mars is crucial for accurate scientific measurements, particularly for seismological studies. The InSight Mission to study the interior structure and composition of Mars has recorded the Mars seismograms and in-situ data for the initial assessment of …

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Lunar Seismometers: Past, Present and Future

G. Pont, Philippe Lognonné, S. de Raucourt, Taïchi Kawamura et autres

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Lunar Gravitational-Wave Detection

M. Branchesi, M. Falanga, J. Harms, K. Jani et autres

Abstract A new era of lunar exploration has begun bringing immense opportunities for science as well. It has been proposed to deploy a new generation of observatories on the lunar surface for deep studies of our Universe. This includes radio antennas, which …

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Farside Seismic Suite (FSS): First-ever seismology on the farside of the Moon and a model for long-lived lunar science

M. P. Panning, S. Kedar, Neil E. Bowles, S. B. Calcutt et autres

The Farside Seismic Suite (FSS), recently selected for flight as part of the NASA PRISM (Payloads and Research Investigations on the Surface of the Moon) program and planned for flight in 2024 or 2025, would deliver two seismometers (both flight-proven through the …

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An autonomous lunar geophysical experiment package (ALGEP) for future space missions

Taïchi Kawamura, Matthias Grott, R. García, M. A. Wieczorek et autres

Abstract Geophysical observations will provide key information about the inner structure of the planets and satellites and understanding the internal structure is a strong constraint on the bulk composition and thermal evolution of these bodies. Thus, geophysical observations are a key to …

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