Photophoretic Strength on Chondrules. 2. Experiment [PDF]
The Astrophysical Journal, 2014 Photophoretic motion can transport illuminated particles in protoplanetary disks. In a previous paper we focused on the modeling of steady state photophoretic forces based on the compositions derived from tomography and heat transfer.
Bischoff, Addi +5 more
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Mechanical Modification of Chondrule Fine-grained Rims by Dusty Nebular Shocks
The Planetary Science Journal, 2023 The mechanical processes that convert an initially fluffy chondrule fine-grained rim (FGR) into a more compact structure remain poorly characterized.
Augusto Carballido +3 more
doaj +1 more source
Cooling Rates of Chondrules after Lightning Discharge in Solid-rich Environments
The Astrophysical Journal, 2023 Among the several candidate models for chondrule formation, the lighting model has been recognized to be less likely than the other two major models, shock-wave heating and planetesimal collision.
Hiroaki Kaneko +3 more
doaj +1 more source
Chondrule formation, metamorphism, brecciation, an important new primary chondrule group, and the classification of chondrules [PDF]
Earth and Planetary Science Letters, 1995 The recently proposed compositional classification scheme for meteoritic chondrules divides the chondrules into groups depending on the composition of their two major phases, olivine (or pyroxene) and the mesostasis, both of which are genetically important.
Derek W.G. Sears +2 more
openaire +1 more source
Modeling Chondrule Dust Rim Growth with Ellipsoidal Monomers
The Astrophysical Journal, 2023 Fine-grained dust rims (FGRs) surrounding chondrules in carbonaceous chondrites encode important information about early processes in the solar nebula.
C. Xiang +3 more
doaj +1 more source
Trace element geochemistry of ordinary chondrite chondrules: the type I/type II chondrule dichotomy [PDF]
, 2015 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 carbonaceous chondrites, with rare earth element (REE) concentrations ...
Alard, Olivier +2 more
core +2 more sources
Barred olivine chondrules in ordinary chondrites: Constraints on chondrule formation
Meteoritics & Planetary Science, 2023 AbstractIn general, barred olivine (BO) chondrules formed from completely melted precursors. Among BO chondrules in unequilibrated ordinary chondrites, there are significant positive correlations among chondrule diameter, bar thickness, and rim thickness.
Alan E. Rubin +4 more
openaire +1 more source
Shock-Wave Heating Model for Chondrule Formation: Prevention of Isotopic Fractionation [PDF]
, 2006 Chondrules are considered to have much information on dust particles and processes in the solar nebula. It is naturally expected that protoplanetary disks observed in present star forming regions have similar dust particles and processes, so study of ...
Blandford R. D. +9 more
core +3 more sources
High-Temperature Processing of Solids Through Solar Nebular Bow Shocks: 3D Radiation Hydrodynamics Simulations with Particles [PDF]
, 2013 A fundamental, unsolved problem in Solar System formation is explaining the melting and crystallization of chondrules found in chondritic meteorites.
Boley, A. C. +2 more
core +1 more source
The Origin of Chondrules: Constraints from Matrix-Chondrule Complementarity
Earth and Planetary Sciences Letters, 2015 One of the major unresolved problems in cosmochemistry is the origin of chondrules, once molten, spherical silicate droplets with diameters of 0.2 to 2 mm. Chondrules are an essential component of primitive meteorites and perhaps of all early solar system materials including the terrestrial planets.
Palme, H, Hezel, D.C, Ebel, D.S.
openaire +2 more sources