524 citations · 1.6k across the 19 of their papers we have counts for
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Interstellar Heritage and the Birth Environment of the Solar System
Edwin A. Bergin, Conel Alexander, Maria Drozdovskaya +2
In this chapter, we explore the origins of cometary material and discuss the clues cometary composition provides in the context of the origin of our solar system. The review focuse…
Early Solar System irradiation quantified by linked vanadium and beryllium isotope variations in meteorites
Paolo A. Sossi, Frederic Moynier, Marc Chaussidon +3
X-ray emission in young stellar objects (YSOs) is orders of magnitude more intense than in main sequence stars1,2, suggestive of cosmic ray irradiation of surrounding accretion dis…
Northwest Africa 5958: a weakly altered CM-related ungrouped chondrite, not a CI3
Emmanuel Jacquet, Jean-Alix Barrat, Pierre Beck +4
Northwest Africa (NWA) 5958 is a carbonaceous chondrite found in Morocco in 2009. Preliminary chemical and isotopic data leading to its initial classification as C3.0 ungrouped hav…
The formation conditions of enstatite chondrites: Insights from trace element geochemistry of olivine-bearing chondrules in Sahara 97096 (EH3)
Emmanuel Jacquet, Olivier Alard, Matthieu Gounelle
We report in situ LA-ICP-MS trace element analyses of silicate phases in olivine-bearing chondrules in the Sahara 97096 (EH3) enstatite chondrite. Most olivine and enstatite presen…
Fossilized condensation lines in the Solar System protoplanetary disk
A. Morbidelli, B. Bitsch, A. Crida +6
The terrestrial planets and the asteroids dominant in the inner asteroid belt are water poor. However, in the protoplanetary disk the temperature should have decreased below water…
New Paradigms For Asteroid Formation
Anders Johansen, Emmanuel Jacquet, Jeffrey N. Cuzzi +2
Asteroids and meteorites provide key evidence on the formation of planetesimals in the Solar System. Asteroids are traditionally thought to form in a bottom-up process by coagulati…
Trace element geochemistry of ordinary chondrite chondrules: the type I/type II chondrule dichotomy
Emmanuel Jacquet, Olivier Alard, Matthieu Gounelle
We report trace element concentrations of silicate phases in chondrules from LL3 ordinary chondrites Bishunpur and Semarkona. Results are similar to previously reported data for ca…
Trace element geochemistry of CR chondrite metal
Emmanuel Jacquet, Marine Paulhiac-Pison, Olivier Alard +2
We report trace element analyses by laser ablation inductively coupled plasma mass spectrometry of metal grains from 9 different CR chondrites, distinguishing grains from chondrule…
Chondrule trace element geochemistry at the mineral scale
Emmanuel Jacquet, Olivier Alard, Matthieu Gounelle
We report trace element analyses from mineral phases in chondrules from carbonaceous chondrites (Vigarano, Renazzo and Acfer 187), carried out by laser ablation inductively coupled…
On the aerodynamic redistribution of chondrite components in protoplanetary disks
Emmanuel Jacquet, Matthieu Gounelle, Sébastien Fromang
Despite being all roughly of solar composition, primitive meteorites (chondrites) present a diversity in their chemical, isotopic and petrographic properties, and in particular a f…
Radial transport of refractory inclusions and their preservation in the dead zone
Emmanuel Jacquet, Sébastien Fromang, Matthieu Gounelle
Calcium-aluminum-rich inclusions (CAIs) are the oldest solar system solids known in primitive meteorites (chondrites). They predate the other components by 1-2 Myr, and likely cond…
Astronomical Oxygen Isotopic Evidence for Supernova Enrichment of the Solar System Birth Environment by Propagating Star Formation
Edward D. Young, Matthieu Gounelle, Rachel L. Smith +2
New infrared absorption measurements of oxygen isotope ratios in CO gas from individual young stellar objects confirm that the solar system is anomalously high in its 18O/17O ratio…
Cometary Origin of the Zodiacal Cloud and Carbonaceous Micrometeorites
David Nesvorny, Peter Jenniskens, Harold F. Levison +2
The zodiacal cloud is a thick circumsolar disk of small debris particles produced by asteroid collisions and comets. Here, we present a zodiacal cloud model based on the orbital pr…
Supernova Propagation And Cloud Enrichment: A new model for the origin of Fe in the early solar system
M. Gounelle, A. Meibom, P. Hennebelle +1
The radioactive isotope Fe ( Myr) was present in the early solar system. It is unlikely that it was injected directly into the nascent solar system by a sing…