116 citations · 550 across the 15 of their papers we have counts for
11 papers · 1 filter
Dust Processing in Protoplanetary Discs From Infall to Dispersal: the Origin of Solar System Isotopic Heterogeneities
Mark A. Hutchison, Maria Schönbächler, Lucio Mayer +1
The nucleosynthetic heterogeneity between different asteroids and planets is well established. These isotopic variations manifest themselves at the part per millions level or large…
The Elemental Abundances of Ryugu: Assessment of Chemical Heterogeneities and the Nugget Effect
Tetsuya Yokoyama, Nicolas Dauphas, Ryota Fukai +6
The Hayabusa 2 spacecraft sampled ~5.4 g of asteroid material from the Cb-type asteroid Ryugu. Initial analysis of the Ryugu materials revealed a mineralogical, chemical, and isoto…
Cosmic dust fertilization of glacial prebiotic chemistry on early Earth
Craig R. Walton, Jessica K. Rigley, Alexander Lipp +5
Earth's surface is deficient in available forms of many elements considered limiting for prebiotic chemistry. In contrast, many extraterrestrial rocky objects are rich in these sam…
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…
Presolar grain dynamics: creating nucleosynthetic variations through a combination of drag and viscous evolution
Mark A. Hutchison, Jean-David Bodénan, Lucio Mayer +1
Meteoritic studies of solar system objects show evidence of nucleosynthetic heterogeneities that are inherited from small presolar grains (< 10 m) formed in stellar environments…
Mesosiderite formation on asteroid 4 Vesta by a hit-and-run collision
Makiko K. Haba, Jörn-Frederik Wotzlaw, Yi-Jen Lai +2
Collision and disruption processes of proto-planetary bodies in the early solar system are key to understanding the genesis of diverse types of main-belt asteroids. Mesosiderites a…
The origin of s-process isotope heterogeneity in the solar protoplanetary disk
Mattias Ek, Alison C. Hunt, Maria Lugaro +1
Rocky asteroids and planets display nucleosynthetic isotope variations that are attributed to the heterogeneous distribution of stardust from different stellar sources in the solar…
AMBITION -- Comet Nucleus Cryogenic Sample Return (White paper for ESA's Voyage 2050 programme)
D. Bockelée-Morvan, G. Filacchione, K. Altwegg +27
This white paper proposes that AMBITION, a Comet Nucleus Sample Return mission, be a cornerstone of ESA's Voyage 2050 programme. We summarise some of the most important questions s…
The formation of Jupiter by hybrid pebble-planetesimal accretion
Yann Alibert, Julia Venturini, Ravit Helled +8
The standard model for giant planet formation is based on the accretion of solids by a growing planetary embryo, followed by rapid gas accretion once the planet exceeds a so-called…
Late metal-silicate separation on the IAB parent asteroid: Constraints from combined W and Pt isotopes and thermal modelling
Alison C. Hunt, David L. Cook, Tim Lichtenberg +4
The short-lived Hf-W decay system is a powerful chronometer for constraining the timing of metal-silicate separation and core formation in planetesimals and planets…
Impact splash chondrule formation during planetesimal recycling
Tim Lichtenberg, Gregor J. Golabek, Cornelis P. Dullemond +3
Chondrules are the dominant bulk silicate constituent of chondritic meteorites and originate from highly energetic, local processes during the first million years after the birth o…