Ryugu's nucleosynthetic heritage from the outskirts of the Solar System

T Hopp, N Dauphas, Y Abe, J Aléon… - Science …, 2022 - science.org
Little is known about the origin of the spectral diversity of asteroids and what it says about
conditions in the protoplanetary disk. Here, we show that samples returned from Cb-type …

Chondrule-like objects and Ca-Al-rich inclusions in Ryugu may potentially be the oldest Solar System materials

D Nakashima, T Nakamura, M Zhang, NT Kita… - Nature …, 2023 - nature.com
Chondrule-like objects and Ca-Al-rich inclusions (CAIs) are discovered in the retuned
samples from asteroid Ryugu. Here we report results of oxygen isotope, mineralogical, and …

Chondrule properties and formation conditions

Y Marrocchi, RH Jones, SS Russell, DC Hezel… - Space Science …, 2024 - Springer
Chondrules are iconic sub-millimeter spheroids representing the most abundant high-
temperature dust formed during the evolution of the circumsolar disk. Chondrules have been …

Is there a genetic relationship between chondrules and matrix?

EMME van Kooten, A Brearley, DS Ebel… - Space Science …, 2024 - Springer
Chondritic components such as chondrules and matrix are the key time capsules that can
help us understand the evolution and dynamics of the protoplanetary disk from which the …

The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites

F Spitzer, T Kleine, C Burkhardt, T Hopp… - Science …, 2024 - science.org
The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type
(CI) chondrites are distinct from other carbonaceous chondrites, which has led to the …

A unified chronology of dust formation in the early solar system

M Piralla, J Villeneuve, N Schnuriger, DV Bekaert… - Icarus, 2023 - Elsevier
The chronology of dust formation in the early solar system remains controversial.
Chondrules are the most abundant high-temperature objects formed during the evolution of …

A temporal shift of chondrule generation from the inner to outer Solar System inferred from oxygen isotopes and Al-Mg chronology of chondrules from primitive CM and …

K Fukuda, TJ Tenner, M Kimura, N Tomioka… - … et Cosmochimica Acta, 2022 - Elsevier
Deciphering the spatial and temporal evolution of chondrules allows for a better
understanding of how asteroidal seeds formed, migrated, and eventually accreted into …

Paleomagnetic evidence for a disk substructure in the early solar system

CS Borlina, BP Weiss, JFJ Bryson, XN Bai, EA Lima… - Science …, 2021 - science.org
Astronomical observations and isotopic measurements of meteorites suggest that
substructures are common in protoplanetary disks and may even have existed in the solar …

Isotopic evolution of the inner solar system revealed by size-dependent oxygen isotopic variations in chondrules

Y Marrocchi, A Longeau, RL Goupil, V Dijon… - … et Cosmochimica Acta, 2024 - Elsevier
The systematic isotopic difference between refractory inclusions and chondrules, particularly
for oxygen, has long indicated an isotopic evolution of the solar protoplanetary disk …

16O-rich anhydrous silicates in CI chondrites: Implications for the nature and dynamics of dust in the solar accretion disk

GLF Morin, Y Marrocchi, J Villeneuve… - … et Cosmochimica Acta, 2022 - Elsevier
CI chondrites have nonvolatile chemical compositions closely resembling that of the Sun's
photosphere and are thus considered to have the most primitive compositions of all known …