57 citations · 205 across the 8 of their papers we have counts for
8 papers
STXM-XANES and TEM analysis of UltraCarbonaceous Antarctic MicroMeteorites (UCAMMs)
B. Guérin, C. Engrand, C. Le Guillou +7
The Concordia micrometeorite collection contains UltraCarbonaceous Antarctic MicroMeteorites (UCAMMs) of probable cometary origin. Eight FIB sections of UCAMMs were studied by Scan…
Microscale Hydrogen, Carbon, and Nitrogen Isotopic Diversity of Organic Matter in Asteroid Ryugu
Larry R Nittler, Jens Barosch, Katherine Burgess +57
We report the H, C, and N isotopic compositions of microscale (0.2 to 2m) organic matter in samples of asteroid Ryugu and the Orgueil CI carbonaceous chondrite. Three regolith p…
Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage?
Hassan Sabbah, Mickaël Carlos, Peter Jenniskens +4
Buckminsterfullerene, C60 , is the largest molecule observed to date in interstellar and circumstellar environments. The mechanism of formation of this molecule is actively debated…
Presolar stardust in asteroid Ryugu
Jens Barosch, Larry R. Nittler, Jianhua Wang +121
We have conducted a NanoSIMS-based search for presolar material in samples recently returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the detection…
First MATISSE L-band observations of HD 179218. Is the inner 10 au region rich in carbon dust particles?
E. Kokoulina, A. Matter, B. Lopez +58
Carbon is one of the most abundant components in the Universe. While silicates have been the main focus of solid phase studies in protoplanetary discs (PPDs), little is known about…
The Origin of Galactic Cosmic Rays as Revealed by their Composition
Vincent Tatischeff, John C. Raymond, Jean Duprat +2
Galactic cosmic-rays (GCRs) are thought to be accelerated in strong shocks induced by massive star winds and supernova explosions sweeping across the interstellar medium. But the p…
Light Element Nucleosynthesis in a Molecular Cloud Interacting with a Supernova Remnant and the Origin of Beryllium-10 in the Protosolar Nebula
Vincent Tatischeff, Jean Duprat, Nicolas de Séréville
The presence of short-lived radionuclides in the early solar system provides important information about the astrophysical environment in which the solar system formed. The discove…
A runaway Wolf-Rayet star as the origin of 26-Al in the early solar system
Vincent Tatischeff, Jean Duprat, Nicolas de Sereville
Establishing the origin of the short-lived radionuclide (SLR) 26-Al, which was present in refractory inclusions in primitive meteorites, has profound implications for the astrophys…