Bernard Marty
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Noble gases and nitrogen in material from asteroid Bennu Open
We report the elemental and isotopic abundances of all stable noble gases (helium, neon, argon, krypton, and xenon) in eight particles from asteroid Bennu returned by NASA's OSIRIS‐REx mission. We also report nitrogen abundances and isotop…
Clues for Solar System Formation from Meteorites and their Parent Bodies Open
Understanding the origin of comets requires knowledge of how the Solar System formed from a cloud of dust and gas 4.567 Gyr ago. Here, a review is presented of how the remnants of this formation process, meteorites and to a lesser extent c…
View article: Uncovering the xenon isotope composition of continental rift magmas: Insight from analysis of geothermal gases at Homa Hills, Kenya
Uncovering the xenon isotope composition of continental rift magmas: Insight from analysis of geothermal gases at Homa Hills, Kenya Open
We investigated geothermal gases from Homa Hills, a carbonatitic complex situated along an adjacent branch of the Kenyan rift system, using neon, argon, krypton, xenon and nitrogen isotopes. Large quantities of gas were sampled in Giggenba…
View article: YRT-PET: An Open-Source GPU-Accelerated Image Reconstruction Engine for Positron Emission Tomography
YRT-PET: An Open-Source GPU-Accelerated Image Reconstruction Engine for Positron Emission Tomography Open
Image reconstruction for positron emission tomography (PET) requires an accurate model of the PET scanner geometry and degrading factors to produce high-quality and clinically meaningful images. It is typically implemented by scanner manuf…
View article: Carbon, nitrogen, and noble gas isotopes reveal deep volatile signatures in thermal springs in the Central Volcanic Zone (CVZ) of the Andes
Carbon, nitrogen, and noble gas isotopes reveal deep volatile signatures in thermal springs in the Central Volcanic Zone (CVZ) of the Andes Open
In subduction zones, thermal springs release deeply-sourced volatiles from Earth's mantle, crust, and/or subducted slab-derived material. The origin and apparent ages of these volatiles are important for understanding the deep volatile cyc…
View article: Formation and evolution of a protoplanetary disk: Combining observations, simulations, and cosmochemical constraints
Formation and evolution of a protoplanetary disk: Combining observations, simulations, and cosmochemical constraints Open
Context. The formation and evolution of protoplanetary disks remains elusive. We have numerous astronomical observations of young stellar objects of different ages with their envelopes and/or disks. Moreover, in the last decade, there has …
Dissecting the complex Ne-Ar-N signature of asteroid Ryugu by step-heating analysis Open
International audience
The Synthetic Aperture Mapping Sonar SAMS150 onboard UlyX AUV 6000m : An advanced solution for simultaneous detection and identification of deep-sea features Open
The use of Autonomous Underwater Vehicles (AUVs) equipped with sonars has become increasingly important in oceanographic research, environmental monitoring, and industrial applications. Synthetic Aperture Sonars (SAS) have gained particula…
Primordial and 244Pu-derived xenon missing from Earth's convecting mantle Open
Mantle-derived noble gases are exceptional recorders of the history of planetary volatile elements (C, N, water), which are key to the development of life on Earth1,2. For example, the relative proportions of 129Xe derived from radioactive…
Ultrahigh-precision noble gas isotope analyses reveal pervasive subsurface fractionation in hydrothermal systems Open
Mantle-derived noble gases in volcanic gases are powerful tracers of terrestrial volatile evolution, as they contain mixtures of both primordial (from Earth’s accretion) and secondary (e.g., radiogenic) isotope signals that characterize th…
View article: First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu
First asteroid gas sample delivered by the Hayabusa2 mission: A treasure box from Ryugu Open
The Hayabusa2 spacecraft returned to Earth from the asteroid 162173 Ryugu on 6 December 2020. One day after the recovery, the gas species retained in the sample container were extracted and measured on-site and stored in gas collection bot…
View article: Planetary Exploration Horizon 2061 Report, Chapter 3: From science questions to Solar System exploration
Planetary Exploration Horizon 2061 Report, Chapter 3: From science questions to Solar System exploration Open
This chapter of the Planetary Exploration Horizon 2061 Report reviews the way the six key questions about planetary systems, from their origins to the way they work and their habitability, identified in chapter 1, can be addressed by means…
The missing carbon budget puzzle piece: shallow-water hydrothermal vents contribution to global CO2 fluxes Open
The release of CO2 gases from volcanoes and their secondary geothermal manifestations are an important contributor to the global carbon budget. While degassing from mid ocean ridges is relatively well-constrained, the contribution of shall…
The EXCITING Experiment Exploring the Behavior of Nitrogen and Noble Gases in Interstellar Ice Analogs Open
Comets represent some of the most pristine bodies in our solar system and can provide a unique insight into the chemical makeup of the early solar system. Due to their icy volatile-rich nature, they may have played an important role in del…
View article: Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution
Noble gases and nitrogen in samples of asteroid Ryugu record its volatile sources and recent surface evolution Open
The near-Earth carbonaceous asteroid (162173) Ryugu is expected to contain volatile chemical species that could provide information on the origin of Earth’s volatiles. Samples of Ryugu were retrieved by the Hayabusa2 spacecraft. We measure…
View article: Scientific Value of Including an Atmospheric Sample as Part of Mars Sample Return (MSR)
Scientific Value of Including an Atmospheric Sample as Part of Mars Sample Return (MSR) Open
The Perseverance rover is meant to collect samples of the martian surface for eventual return to Earth. The headspace gas present over the solid samples within the sample tubes will be of significant scientific interest for what it reveals…