Abundant presolar grains and primordial organics preserved in carbon-rich exogenous clasts in asteroid Ryugu
Preliminary analyses of asteroid Ryugu samples show kinship to aqueously altered CI
(Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich …
(Ivuna-type) chondrites, suggesting similar origins. We report identification of C-rich …
Presolar stardust in asteroid Ryugu
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 …
returned from C-type asteroid Ryugu as part of JAXA's Hayabusa2 mission. We report the …
[HTML][HTML] Monosaccharides and their derivatives in carbonaceous meteorites: A scenario for their synthesis and onset of enantiomeric excesses
Carbonaceous meteorites provide the best glimpse into the solar system's earliest physical
and chemical processes. These ancient objects,~ 4.56 billion years old, contain evidence of …
and chemical processes. These ancient objects,~ 4.56 billion years old, contain evidence of …
[HTML][HTML] The early Solar System and its meteoritical witnesses
E Jacquet, C Dullemond, J Drążkowska… - Space Science Reviews, 2024 - Springer
Meteorites, and in particular primitive meteorites (chondrites), are irreplaceable probes of
the solar protoplanetary disk. We review their essential properties and endeavour to place …
the solar protoplanetary disk. We review their essential properties and endeavour to place …
[HTML][HTML] Search for meteoritic GEMS I: Comparison of amorphous silicates in Paris and Acfer 094 chondrite matrices and in anhydrous chondritic interplanetary dust …
Amorphous silicates in meteoritic samples are significant as potential surviving interstellar
dust from the formation of the Solar System. Amorphous silicate-rich grains called GEMS …
dust from the formation of the Solar System. Amorphous silicate-rich grains called GEMS …
Nebular thermal processing of accretionary fine-grained rims in the Paris CM chondrite
Fine-grained rims (FGRs) are ubiquitous in chondrites. They consist of unequilibrated
mineral assemblages that surround chondrules and refractory inclusions. As such, they carry …
mineral assemblages that surround chondrules and refractory inclusions. As such, they carry …
High abundances of presolar grains and 15N-rich organic matter in CO3. 0 chondrite Dominion Range 08006
Abstract NanoSIMS C-, N-, and O-isotopic mapping of matrix in CO3. 0 chondrite Dominion
Range (DOM) 08006 revealed it to have in its matrix the highest abundance of presolar O …
Range (DOM) 08006 revealed it to have in its matrix the highest abundance of presolar O …
Mass and metallicity distribution of parent AGB stars of presolar SiC
S Cristallo, A Nanni, G Cescutti, I Minchev… - Astronomy & …, 2020 - aanda.org
The vast majority (≳ 90%) of presolar SiC grains identified in primitive meteorites are relics
of ancient asymptotic giant branch (AGB) stars, whose ejecta were incorporated into the …
of ancient asymptotic giant branch (AGB) stars, whose ejecta were incorporated into the …
Search for meteoritic GEMS II: Comparison of inclusions in amorphous silicates from the Paris chondrite and from anhydrous chondritic interplanetary dust particles
Amorphous silicates containing abundant nano-inclusions have been reported in the Paris
CM chondrite (Leroux et al., 2015). They have chemical and morphological similarities to …
CM chondrite (Leroux et al., 2015). They have chemical and morphological similarities to …
The presolar grain inventory of fine‐grained chondrule rims in the Mighei‐type (CM) chondrites
We investigated the inventory of presolar silicate, oxide, and silicon carbide (SiC) grains of
fine‐grained chondrule rims in six Mighei‐type (CM) carbonaceous chondrites (Banten …
fine‐grained chondrule rims in six Mighei‐type (CM) carbonaceous chondrites (Banten …