Early solar system chronology from short-lived chronometersOPEN ACCESS
Aryavart Anand, Klaus Mezger GeochemistryInvited ReviewAvailable online 30 May 2023, 126004 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “Age constraints on early solar system processes and events can be derived from meteorites and their components using…
Hydrogen in acapulcoites and lodranites: A unique source of water for planetesimals in the inner Solar SystemOPEN ACCESS
A. Stephant, X. Zhao, M. Anand, J. Davidson, C. Carli, T. Cuppone, G. Pratesi, I.A. Franchi Earth and Planetary Science LettersVolume 615, 1 August 2023, 118202 LINK (OPEN ACCESS) “Highlights Partial melting up to 20%…
Impact mixing among rocky planetesimals in the early Solar System from angrite oxygen isotopes
B. G. Rider-Stokes, R. C. Greenwood, M. Anand, L. F. White, I. A. Franchi, V. Debaille, S. Goderis, L. Pittarello, A. Yamaguchi, T. Mikouchi & P. Claeys Nature Astronomy, Published: 15 May 2023 LINK “Angrite…
Sulfuric acid as a corrosive cryofluid and oxygen isotope reservoir in planetesimals
Akihiko Hashimoto, Yuki Nakano IcarusIn Press, Journal Pre-proof, Available online 25 March 2023 LINK “The Earth-Moon and other planetary objects are enriched in the heavier isotopes, 17O and 18O, relative to 16O by several %,…
Degassing of early-formed planetesimals restricted water delivery to Earth
M. E. Newcombe, S. G. Nielsen, L. D. Peterson, J. Wang, C. M. O’D. Alexander, A. R. Sarafian, K. Shimizu, L. R. Nittler & A. J. Irving NaturePublished: 15 March 2023 LINK “The timing of…
Origin of isotopic diversity among carbonaceous chondritesOPEN ACCESS
Jan L. Hellmann, Jonas M. Schneider, Elias Wölfer, Joanna Drążkowska, Christian A. Jansen, Timo Hopp, Christoph Burkhardt, Thorsten Kleine Accepted for publication in ApJL PDF (OPEN ACCESS) “Carbonaceous chondrites are some of the most primitive…
An Astrophysical Site for Chondrule Formation
Herbst W.* Greenwood J. P. 54th Lunar and Planetary Science Conference 2023 abstract [#1209] We propose that chondrules form during the accretion of primitive planetesimal fragments to differentiated planetesimals.
The Angrite Parent Body as the Archetypal First-Generation Planetesimal: Large, Reduced and Mg-Enriched
Tissot F. L. H.* Collinet M. Namur O. Grove T. L. 54th Lunar and Planetary Science Conference 2023 abstract [#1221] Two groups of quenched angrites. Experimental constraints point to a possibly Moon-sized parent body. A self-consistent bulk composition for the APB…
Heterogenity of planetesimal collisional plume probed by glass inclusions in metal globules of Sierra Gorda 013, an unusual CBa-like chondrite
C. A. Lorenz, M. A. Ivanova, N. G. Zinovieva, K. M. Ryazantsev, A. V. Korochantsev MAPSVersion of Record online: 02 February 2023 LINK “Metal-rich carbonaceous CB chondrites are generally assumed to be materials accreted from the gas–dust plume formed…
Melt migration in rubble-pile planetesimals: Implications for the formation of primitive achondrites
Zhongtian Zhang, David Bercovici, Linda T. Elkins-Tanton Earth and Planetary Science LettersAvailable online 31 January 2023, 118019 LINK “Primitive achondrites represent residual mantle material of planetesimals from which up to 20% partial melts were extracted….
Origin of the superchondritic carbon/nitrogen ratio of the bulk silicate Earth − an outlook from iron meteorites
Damanveer S. Grewal, Paul D. Asimow Geochimica et Cosmochimica ActaAvailable online 20 January 2023 LINK “Disagreement regarding the origin of the bulk silicate Earth’s (BSE) superchondritic carbon/nitrogen (C/N) ratio is due, in part, to the…
K-Ca dating and Ca isotope composition of the oldest Solar System lava, Erg Chech 002OPEN ACCESS
W. Dai, F. Moynier, L. Fang, J. Siebert Geochemical Perspectives Letters v24 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Erg Chech 002 (EC 002) is an andesitic meteorite, which is the oldest lava in the Solar System…
Making the Solar SystemOPEN ACCESS
John Chambers Accepted for publication in the Astrophysical Journal PDF (OPEN ACCESS) Update (16 February 2023): The Astrophysical Journal, Volume 944, Number 2LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We model the early stages of planet formation…
Birth and decline of magma oceans in planetesimals. Part 2: Structure and thermal history of early accreted small planetary bodies
Cyril Sturtz, Angela Limare, Stephen Tait, Édouard Kaminski JGR Planets, First Published: 30 November 2022 LINK “Key Points We model the thermal and structural evolution of radiogenic heated early accreted planetesimals that experienced an internal…
Birth and decline of magma oceans in planetesimals. Part 1: Experimental study of erosion and deposition of particles in an internally heated convecting fluid
Cyril Sturtz, Angela Limare, Stephen Tait, Édouard Kaminski JGR PlanetsFirst Published: 18 November 2022 LINK “Key Points We study experimentally the transient behavior of a convective fluid bearing particles that can float or sediment to…
Rapid formation of massive planetary cores in a pressure bumpOPEN ACCESS
T.C.H. Lau, J. Dra̧żkowska, S.M. Stammler, T. Birnstiel, C.P. Dullemond Astronomy & Astrophysics, manuscript no. 44864corrReceived: 01 September 2022 / Accepted: 08 November 2022 PDF (OPEN ACCESS) “Context. Models of planetary core growth by either…
Acquisition and Preservation of Remanent Magnetization in Carbonaceous Asteroids
Samuel W. Courville, Joseph G. O’Rourke, Julie C. Castillo-Rogez, Roger R. Fu, Rona Oran, Benjamin P. Weiss & Linda T. Elkins-Tanton Nature AstronomyPublished: 13 October 2022 LINK “The solar nebula sustained a strong magnetic field…
The case for the angrite parent body as the archetypal first-generation planetesimal: Large, reduced and Mg-enriched
François L.H. Tissot, Max Collinet, Olivier Namur, Timothy L. Grove Geochimica et Cosmochimica ActaIn Press, Journal Pre-proof, Available online 7 October 2022 LINK “Angrites are silica-undersaturated achondrites formed very early in the history of the…
Origin of Nitrogen Isotopic Variations in the Rocky Bodies of the Solar SystemOPEN ACCESS
Damanveer S. Grewal The Astrophysical Journal, Volume 937, Number 25 October 2022 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Noncarbonaceous (NC; inner solar system) meteorites have lower 15N/14N ratios than carbonaceous (CC; outer solar system) meteorites. Whether…
The Fate of Nitrogen during Parent Body Partial Melting and Accretion of the Inner Solar System Bodies at Reducing Conditions
Rajdeep Dasgupta, Emily Falksen, Aindrila Pal, Chenguang Sun Geochimica et Cosmochimica ActaAvailable online 23 September 2022 LINK “Evolution of nitrogen (N), a life-essential volatile element, in highly reduced magmatic systems is a key for the…
Stochastic accretion of the Earth
Paolo A. Sossi, Ingo L. Stotz, Seth A. Jacobson, Alessandro Morbidelli & Hugh St. C. O’Neill Nature AstronomyPublished: 07 July 2022 LINK “Chondritic meteorites are thought to be representative of the material that formed the…
Structure of differentiated planetesimals: A chondritic fridge on top of a magma ocean
Cyril Sturtz, Angela Limare, Marc Chaussidon, Édouard Kaminski IcarusIn Press, Journal Pre-proof, Available online 28 May 2022 LINK “Highlights • We study the formation and the thermal evolution of planetesimals that accreted undifferentiated material during…
Chondrule formation via impact jetting in the icy outer solar system
Melissa D. Cashion, Brandon C. Johnson, Alexander N. Krot, Katherine Kretke, Shigeru Wakita, Thomas M. Davison IcarusIn Press, Journal Pre-proof, Available online 24 May 2022 LINK “Highlights • Jetting during icy impacts is proposed to…
The dissipation of the solar nebula constrained by impacts and core cooling in planetesimals
Alison C. Hunt, Karen J. Theis, Mark Rehkämper, Gretchen K. Benedix, Rasmus Andreasen & Maria Schönbächler Nature AstronomyPublished: 23 May 2022 LINK “Rapid cooling of planetesimal cores has been inferred for several iron meteorite parent…
Distinguishing the Origin of Asteroid (16) PsycheOPEN ACCESS
Linda T. Elkins-Tanton, Erik Asphaug, James F. Bell III, Carver J. Bierson, Bruce G. Bills, William F. Bottke, Samuel W. Courville, Steven D. Dibb, Insoo Jun, David J. Lawrence, Simone Marchi, Timothy J. McCoy, Jose…
Did Earth eat its leftovers? Impact ejecta as a component of the late veneerOPEN ACCESS
Philip J. Carter, Sarah T. Stewart Draft version April 11, 2022, to be published in PSJ PDF (OPEN ACCESS) Update (19 April 2022):LINK (OPEN ACCESS)PDF (OPEN ACCESS)The Planetary Science Journal, Volume 3, Number 4 “The…
A case for a Themis asteroid family spacecraft mission
M.E. Landis, J.C. Castillo-Rogez, P.O. Hayne, H. Hsieh, K.H.G. Hughson, D. Kubitschek, K.E. Miller, T.H. Prettyman, A.S. Rivkin, B.E. Schmidt, J.E.C.Scully, N. Yamashita, M.N. Villarreal, M. Alexander, A. Armstrong, C. Bader, C. Brown, J.T. Engbrecht,…
Planetesimal rings as the cause of the Solar System’s planetary architectureOPEN ACCESS
Andre Izidoro, Rajdeep Dasgupta, Sean N. Raymond, Rogerio Deienno, Bertram Bitsch & Andrea Isella Nature Astronomy (2021)Published: 30 December 2021 LINK Update (3 January 2022): PDF (OPEN ACCESS) “Astronomical observations reveal that protoplanetary disks around…
Effects of pebble accretion on the growth and composition of planetesimals in the inner Solar SystemOPEN ACCESS
J. Mah, R. Brasser, A. Bouvier, S. J. Mojzsis accepted for publication in MNRAS PDF (OPEN ACCESS) “Recent work has shown that aside from the classical view of collisions by increasingly massive planetesimals, the accretion…
Contemporary formation of early Solar System planetesimals at two distinct radial locationsOPEN ACCESS
A. Morbidelli, K. Baillié, K. Batygin, S. Charnoz, T. Guillot, D. C. Rubie & T. Kleine Nature Astronomy (2021)Published: 22 December 2021 LINK Update (3 January 2022): PDF (OPEN ACCESS) “The formation of planetesimals is…
Meteorites and the RNA world: Synthesis of Nucleobases in Carbonaceous Planetesimals and the Role of Initial Volatile ContentOPEN ACCESS
Klaus Paschek, Dmitry A. Semenov, Ben K. D. Pearce, Kevin Lange, Thomas K. Henning, Ralph E. Pudritz Submitted to The Astrophysical Journal PDF (OPEN ACCESS) Update (10 January 2023): The Astrophysical Journal, Volume 942, Number…
New evidence for wet accretion of inner solar system planetesimals from meteorites Chelyabinsk and BenenitraOPEN ACCESS
Ziliang Jin, Maitrayee Bose, Tim Lichtenberg, Gijs Mulders accepted for publication in The Planetary Science Journal PDF (OPEN ACCESS) Update (28 December 2021): LINK (OPEN ACCESS) / PDF (OPEN ACCESS)The Planetary Science Journal, Volume 2,…
Early Initiation of Inner Solar System Formation at the Dead-zone Inner EdgeOPEN ACCESS
Takahiro Ueda, Masahiro Ogihara, Eiichiro Kokubo, and Satoshi Okuzumi The Astrophysical Journal Letters, Volume 921, Number 1 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “The inner solar system possesses a unique orbital structure in which there are…
Nucleosynthetic Pt isotope anomalies and the Hf-W chronology of core formation in inner and outer solar system planetesimalsOPEN ACCESS
Fridolin Spitzer, Christoph Burkhardt, Francis Nimmo, Thorsten Kleine Accepted for publication in Earth and Planetary Science Letters PDF (OPEN ACCESS) Update (6 October 2021): Earth and Planetary Science Letters, Volume 576, 15 December 2021LINK “The…
Common feedstocks of late accretion for the terrestrial planets
M.-H. Zhu, A. Morbidelli, W. Neumann, Q.-Z. Yin, J.M.D. Day, D.C. Rubie, G.J. Archer, N. Artemieva, H. Becker, K. Wünnemann Nature Astronomy (30 September 2021) LINK “Abundances of the highly siderophile elements (HSEs) in silicate…
A time-resolved paleomagnetic record of Main Group pallasites: Evidence for a large-cored, thin-mantled parent body
Claire I. O. Nichols, James F.J. Bryson, Rory D. Cottrell, Roger R. Fu, Richard J. Harrison, Julia Herrero-Albillos, Florian Kronast, John A. Tarduno, Benjamin P. Weiss JGR PlanetsFirst Published: 18 June 2021 LINK “Several paleomagnetic…
The Macroporosity of Rubble Pile Asteroid Ryugu and Implications for the Origin of ChondrulesOPEN ACCESS
William Herbst, James P. Greenwood and Teng Ee Yap The Planetary Science Journal, Volume 2, Number 3 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “We use the known surface boulder-size distribution of the C-type rubble pile asteroid…
Anomalously porous boulders on (162173) Ryugu as primordial materials from its parent body
N. Sakatani, S. Tanaka, T. Okada, T. Fukuhara, L. Riu, S. Sugita, R. Honda, T. Morota, S. Kameda, Y. Yokota, E. Tatsumi, K. Yumoto, N. Hirata, A. Miura, T. Kouyama, H. Senshu, Y. Shimaki, T….
Evidence from achondrites for a temporal change in Nd nucleosynthetic anomalies within the first 1.5 million years of the inner solar system formation
Paul Frossard, Zhiguo Guo, Mary Spencer, Maud Boyet, Audrey Bouvier Earth and Planetary Science LettersVolume 566, 15 July 2021 LINK “Highlights • Nd isotope composition of planetesimals-derived achondrites is different than planetary bodies (Earth, Mars…
An evolutionary system of mineralogy, Part IV: Planetesimal differentiation and impact mineralization (4566 to 4560 Ma)
Shaunna M. Morrison, Robert M. Hazen American Mineralogist (2021) 106 (5): 730–761 LINK “The fourth installment of the evolutionary system of mineralogy considers two stages of planetesimal mineralogy that occurred early in the history of…
Early volatile depletion on planetesimals inferred from C–S systematics of iron meteorite parent bodiesOPEN ACCESS
Marc M. Hirschmann, Edwin A. Bergin, Geoff A. Blake, Fred J. Ciesla, and Jie Li PNAS March 30, 2021 118 (13) e2026779118 LINK (OPEN ACCESS)PDF (OPEN ACCESS) manuscript PDF (OPEN ACCESS) “During the formation of…
Dynamic evolution of major element chemistry in protoplanetary disks and its implications for Earth-enstatite chondrite connection
Yoshinori Miyazaki, Jun Korenaga IcarusIn Press, Journal Pre-proof, Available online 19 February 2021 LINK “Chondrites are the likely building blocks of Earth, and identifying the group of chondrite that best represents Earth is a key…
A long‐lived planetesimal dynamo powered by core crystallization
Clara Maurel, James F. J. Bryson, Jay Shah, Rajesh V. Chopdekar, L. T. Elkins‐Tanton, C. A. Raymond, Benjamin P. Weiss Geophysical Research LettersFirst published: 11 February 2021 LINK “The existence of numerous iron meteorite groups…
Evaluating the O‐Cr‐Mo isotope signatures in various meteorites representing core–mantle–crust fragments: Implications for partially differentiated planetesimal(s) accreted in the early outer solar system
Arshad Ali, Iffat Jabeen Meteoritics & Planetary ScienceVersion of Record online: 07 February 2021 LINK “The Allende, Eagle Station pallasites (ESP), some ungrouped achondrites (UA), and ungrouped irons (UI) represent different types of meteorites; these…
Bifurcation of planetary building blocks during Solar System formationOPEN ACCESS
Tim Lichtenberg, Joanna Dra̧żkowska, Maria Schönbächler, Gregor J. Golabek, Thomas O. Hands Science, 22 Jan 2021Vol. 371, Issue 6527, pp. 365-370 PDF (OPEN ACCESS) Published 21 January 2021; authors’ version LINK Supplementary Materials (PDF) “Geochemical…
Microporosity and parent body of the rubble-pile NEA (162173) RyuguOPEN ACCESS
Wladimir Neumann, Matthias Grott, Mario Trieloff, Ralf Jaumann, Jens Biele, Maximilian Hamm, Ekkehard Kührt IcarusIn press, journal pre-proof, Available online 24 October 2020 LINK PDF (OPEN ACCESS) “Highlights • We investigate the porosity for ice-rich…
Rocklines as Cradles for Refractory Solids in the Protosolar Nebula
Artyom Aguichine, Olivier Mousis, Bertrand Devouard, Thomas Ronnet The Astrophysical Journal, Volume 901, Number 2Published 2020 September 25 LINK “In our solar system, terrestrial planets and meteoritical matter exhibit various bulk compositions. To understand this…
Petrological evidence for the existence and disruption of a 500 km-sized differentiated planetesimal of enstatite-chondritic parentage
Dennis Harries, Addi Bischoff Earth and Planetary Science LettersVolume 548, 15 October 2020, 116506 LINK “Highlights • A unique enstatite-rich lithology was found among Almahata Sitta meteorite samples.• Petrology indicates a radius of ∼500 km…
Heavy iron isotope composition of iron meteorites explained by core crystallization
Peng Ni, Nancy L. Chabot, Caillin J. Ryan & Anat Shahar Nature Geoscience , 1–5Published: 03 August 2020 LINK “Similar to Earth, many large planetesimals in the Solar System experienced planetary-scale processes such as accretion,…
Early accretion of planetesimals unraveled by the thermal evolution of the parent bodies of magmatic iron meteorites
Edouard Kaminski, Angela Limare, Balthasar Kenda, Marc Chaussidon Earth and Planetary Science LettersVolume 548, 15 October 2020, 116469 LINK “Highlights • Hf/W ages of magmatic iron meteorites define a common thermal evolution.• We propose a…
Meteorite evidence for partial differentiation and protracted accretion of planetesimalsOPEN ACCESS
Clara Maurel, James F. J. Bryson, Richard J. Lyons, Matthew R. Ball, Rajesh V. Chopdekar, Andreas Scholl, Fred J. Ciesla, William F. Bottke, Benjamin P. Weiss Science Advances 24 Jul 2020:Vol. 6, no. 30, eaba1303DOI:…
Ureilite meteorites provide a new model of early planetesimal formation and destructionOPEN ACCESS
N. Rai, H. Downes, C. Smith Geochemical Perspectives Letters 14, pp. 20–25 LINK (OPEN ACCESS)PDF (OPEN ACCESS) “Ureilite meteorites are ultramafic rocks derived from parts of the depleted silicate mantle of their parent planetesimal. We…
Dynamic evolution of major element chemistry in protoplanetary disks and its implications for chondrite formationOPEN ACCESS
Yoshinori Miyazaki, Jun Korenaga PDF (OPEN ACCESS) “Chondrites are the likely building blocks of Earth, and identifying the group of chondrite that best represents Earth is a key to resolving the state of the early…
Cascade Model for Planetesimal Formation by Turbulent Clustering
Thomas Hartlep and Jeffrey N. Cuzzi The Astrophysical Journal Volume 892, Number 2, 2020 April 1 LINK “We use a newly developed cascade model of turbulent concentration of particles in protoplanetary nebulae to calculate several…
Early silica crust formation in planetesimals by metastable silica-rich liquid immiscibility or cristobalite crystallisation: the possible origin of silica-rich chondrulesOPEN ACCESS
François Faure Scientific Reports 10, Article number: 4765 (2020) LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The formation and differentiation processes of planetesimals—small bodies in the solar system—remain actively debated. Planetesimal differentiation is known to have…
Subsolar Al/Si and Mg/Si ratios of non-carbonaceous chondrites reveal planetesimal formation during early condensation in the protoplanetary diskOPEN ACCESS
A. Morbidelli, G. Libourel, H. Palme, S.A. Jacobson, D.C. Rubie Accepted for publication in EPSL PDF (OPEN ACCESS) “The Al/Si and Mg/Si ratios in non-carbonaceous chondrites are lower than the solar (i.e., CI-chondritic) values, in…
Formation of primitive achondrites by partial melting of alkali-undepleted planetesimals in the inner solar system
Max Collinet, Timothy L. Grove Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 12 March 2020 LINK “Acapulcoites-lodranites, ureilites, brachinites, brachinite-like achondrites and winonaites are the main groups of primitive achondrites. They are…
Observations, meteorites, and models: A pre‐flight assessment of the composition and formation of (16) Psyche
L.T. Elkins‐Tanton, E. Asphaug, J. F. Bell III, H. Bercovici, B. Bills, R. Binzel, W. F. Bottke, S. Dibb, D. J. Lawrence, S. Marchi, T. J. McCoy, R. Oran, R. S. Park, P. N. Peplowski,…
Unique angrite-like fragments in a CH3 chondrite reveal a new basaltic planetesimal
Ai-Cheng Zhang, Noriyuki Kawasaki, Minami Kuroda, Yang Li, Hua-Pei Wang, Xue-Ning Bai, Naoya Sakamoto, Qing-Zhu Yin, Hisayoshi Yurimoto Geochimica et Cosmochimica Acta In Press, Journal Pre-proof, Available online 19 February 2020 LINK “Most meteorites are…
Discovery of fossil asteroidal ice in primitive meteorite Acfer 094OPEN ACCESS
Megumi Matsumoto, Akira Tsuchiyama, Aiko Nakato, Junya Matsuno, Akira Miyake, Akimasa Kataoka, Motoo Ito, Naotaka Tomioka, Yu Kodama, Kentaro Uesugi, Akihisa Takeuchi, Tsukasa Nakano and Epifanio Vaccaro Science Advances 20 Nov 2019: Vol. 5, no….
Accretionary mixing of a eucrite impactor and the regolith of the L chondrite parent body
Brendt C. Hyde, Kimberly T. Tait, Desmond E. Moser, Douglas Rumble, Michelle S. Thompson Meteoritics & Planetary Science First Published: 13 November 2019 LINK “Northwest Africa (NWA) 869 is the largest sample of chondritic regolith…
Evidence for anorthositic crust formed on an inner solar system planetesimalOPEN ACCESS
P. Frossard, M. Boyet, A. Bouvier, T. Hammouda, J. Monteux Geochemical Perspectives Letters v11 doi: 10.7185/geochemlet.1921 Published 7 October 2019 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “During the first million years of solar system history,…
Ferrovolcanism on metal worlds and the origin of pallasitesOPEN ACCESS
Brandon C. Johnson, Michael M. Sori & Alexander J. Evans Nature Astronomy, 1–4, published: 16 September 2019 LINK PDF (OPEN ACCESS) “As differentiated planetesimals cool, their cores can solidify from the outside in1, as evidenced…
Chondrule Formation by the Jovian Sweeping Secular ResonanceOPEN ACCESS
Munan Gong, Xiaochen Zheng, Douglas N.C. Lin, Kedron Silsbee, Clement Baruteau, Shude Mao Accepted for publication by ApJ PDF (OPEN ACCESS) LINK “Chondrules are silicate spheroids found in meteorites, serving as important fossil records of…
Rocky Planetesimal Formation Aided by Organics
Kazuaki A. Homma, Satoshi Okuzumi, Taishi Nakamoto, and Yuta Ueda The Astrophysical Journal, Volume 877, Number 2 LINK “The poor stickiness of silicate dust grains is a major obstacle to the formation of rocky planetesimals….
Dust Condensation in Evolving Discs and the Composition of Meteorites, Planetesimals, and PlanetsOPEN ACCESS
Min Li, Shichun Huang, Michail I. Petaev, Zhaohuan Zhu, Jason H. Steffen Submitted to MNRAS PDF (OPEN ACCESS) “Partial condensation of dust from the Solar nebula is thought to be responsible for the diverse chemical…
The effects of impacts on the cooling rates of iron meteorites
Richard J. Lyons, Timothy J. Bowling, Fred J. Ciesla, Thomas M. Davison, Gareth S. Collins Meteoritics & Planetary Science First Published: 14 May 2019 LINK “Iron meteorites provide a record of the thermal evolution of…
A Radiative Heating Model for Chondrule and Chondrite FormationOPEN ACCESS
William Herbst, James P. Greenwood Icarus PDF (OPEN ACCESS) Update (11 April 2019): LINK “We propose that chondrules and chondrites formed together during a brief radiative heating event caused by the close encounter of a…
Evidence for early impact on a hot differentiated planetesimal from Al-rich micro-inclusions in ungrouped achondrite Northwest Africa 7325
Jing Yang, Chi Zhang, Masaaki Miyahara, Xu Tang, Lixin Gu, Yangting Lin Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 13 March 2019 LINK “The ungrouped achondrite NWA 7325 is a cumulate olivine…
Fates of hydrous materials during planetesimal collisionsOPEN ACCESS
Shigeru Wakita, Hidenori Genda PDF (OPEN ACCESS) Update (Icarus, 20 March 2019) LINK “Hydrous minerals are found on the surfaces of asteroids, but their origin is not clear. If their origin is endogenic, the hydrous…
Accretion of the asteroids: Implications for their thermal evolution
S. J. Weidenschilling Meteoritics & Planetary Science First Published: 3 March 2019 LINK “Thermal models of asteroids generally assume that they accreted either instantaneously or over an extended interval with a prescribed growth rate. It…
Meteorite cloudy zone formation as a quantitative indicator of paleomagnetic field intensities and cooling rates on planetesimalsOPEN ACCESS
Clara Maurel, Benjamin P. Weiss, James F. J. Bryson PDF (OPEN ACCESS) “Metallic microstructures in slowly-cooled iron-rich meteorites reflect the thermal and magnetic histories of their parent planetesimals. Of particular interest is the cloudy zone,…
Near-equilibrium isotope fractionation during planetesimal evaporationOPEN ACCESS
E.D. Young, A. Shahar, F. Nimmo, H.E. Schlichting, E.A. Schauble, H. Tang, J. Labidi Icarus Available online 21 January 2019 LINK PDF (OPEN ACCESS) “Highlights • Silicon and Mg in differentiated rocky bodies exhibit heavy…
On the principle building blocks of Mars and Earth
Christian Liebske, Amir Khan IcarusAvailable online 20 January 2019 LINK “Highlights • Stochastic mixing of chondrites and achondrites to reconcile isotopic signatures for Mars and Earth indicate highly non-unique solution spaces • Complementary geophysical and…
Magma ascent in planetesimals: Control by grain size
Tim Lichtenberg, Tobias Keller, Richard F.Katz, Gregor J. Golabek, Taras V. Gerya Earth and Planetary Science Letters Volume 507, 1 February 2019, Pages 154-165 LINK “Highlights • Planetesimal melt transport regimes from coupled models of…
Iron Isotope Constraints on Planetesimal Core Formation in the Early Solar System
Michelle K. Jordan, HaoLan Tang, Issaku E. Kohl, Edward D. Young Geochimica et Cosmochimica Acta LINK “We determined the Fe isotope fractionation between the metal and silicate phases of two aubrite meteorites, Norton County and…
Olivine grain growth in partially molten Fe–Ni–S: A proxy for the genesis of pallasite meteorites
Giulio F.D. Solferino, Gregor J. Golabek Earth and Planetary Science Letters Volume 504, 15 December 2018, Pages 38-52 LINK “Highlights • Olivine grain growth in metal matrix is faster when metal is partially molten. •…
Meteoritic Abundances of Fatty Acids and Potential Reaction Pathways in PlanetesimalsOPEN ACCESS
James C.-Y. Lai, Ben K. D. Pearce, Ralph E. Pudritz, Drake Lee accepted for publication in Icarus PDF (OPEN ACCESS) “The origin of fatty acids on the prebiotic Earth is important as they likely formed…
The formation of Jupiter by hybrid pebble–planetesimal accretionOPEN ACCESS
Yann Alibert, Julia Venturini, Ravit Helled, Sareh Ataiee, Remo Burn, Luc Senecal, Willy Benz, Lucio Mayer, Christoph Mordasini, Sascha P. Quanz & Maria Schönbächler Nature Astronomy (2018) PDF (OPEN ACCESS) LINK “The standard model for…
Silica-rich volcanism in the early solar system dated at 4.565 GaOPEN ACCESS
Poorna Srinivasan, Daniel R. Dunlap, Carl B. Agee, Meenakshi Wadhwa, Daniel Coleff, Karen Ziegler, Ryan Zeigler & Francis M. McCubbin Nature Communications 9, 3036 Published: 02 August 2018 LINK (OPEN ACCESS) PDF (OPEN ACCESS) Abstract…
The common origin of family and non-family asteroids
Stanley F. Dermott, Apostolos A. Christou, Dan Li, Thomas. J. J. Kehoe & J. Malcolm Robinson Nature Astronomy (2018) LINK “All asteroids are currently classified as either family, originating from the disruption of known bodies1,…
Thermal evolution and sintering of chondritic planetesimals IV. Temperature dependence of heat conductivity of asteroids and meteoritesOPEN ACCESS
Hans-Peter Gail, Mario Trieloff Update (30 July 2018):LINK PDF (OPEN ACCESS) “Understanding the compaction and differentiation of the planetesimals and protoplanets from the Asteroid Belt and the terrestrial planet region of the Solar System requires…
Multi‐stage core formation in planetesimals revealed by numerical modeling and Hf‐W chronometry of iron meteorites
W. Neumann, T. S. Kruijer, D. Breuer, T. Kleine J. Geophys. Res., 123, doi:10.1002/2017JE005411 LINK “Iron meteorites provide some of the most direct insights into the processes and timescales of core formation in planetesimals. Of…
Percolative core formation in planetesimals enabled by hysteresis in metal connectivity
Soheil Ghanbarzadeh, Marc A. Hesse, and Maša Prodanović PNAS 2017 ; published ahead of print December 4, 2017 doi: 10.1073/pnas.1707580114 LINK “Significance It has long been thought that percolative core formation is prevented by high…
Heterogeneous delivery of silicate and metal to the Earth by large planetesimalsOPEN ACCESS
S. Marchi, R. M. Canup & R. J. Walker Nature Geoscience (2017) doi:10.1038/s41561-017-0022-3 Published online: 04 December 2017 LINK (OPEN ACCESS) “After the Moon’s formation, Earth experienced a protracted bombardment by leftover planetesimals. The mass…
Impact splash chondrule formation during planetesimal recyclingOPEN ACCESS
Tim Lichtenberg, Gregor J. Golabek, Cornelis P. Dullemond, Maria Schönbächler, Taras V. Gerya, Michael R. Meyer accepted for publication in Icarus associated blog article (6 Nov 2017) PDF (OPEN ACCESS) “Chondrules are the dominant bulk…
Spatial distribution of carbon dust in the early solar nebula and the carbon content of planetesimalsOPEN ACCESS
Hans-Peter Gail, Mario Trieloff A&A Volume 606, October 2017 LINK (OPEN ACCESS) “Context. A high fraction of carbon bound in solid carbonaceous material is observed to exist in bodies formed in the cold outskirts of…
The empty primordial asteroid beltOPEN ACCESS
Sean N. Raymond, Andre Izidoro Science Advances 13 Sep 2017: Vol. 3, no. 9, e1701138 DOI: 10.1126/sciadv.1701138 LINK (OPEN ACCESS) PDF (OPEN ACCESS) PDF (OPEN ACCESS) (authors’ version) Blog post by S.N. Raymond “The asteroid…
Identification of a primordial asteroid family constrains the original planetesimal population
Marco Delbo, Kevin Walsh, Bryce Bolin, Chrysa Avdellidou, Alessandro Morbidelli Science 08 Sep 2017: Vol. 357, Issue 6355, pp. 1026-1029 DOI: 10.1126/science.aam6036 LINK “A quarter of known asteroids is associated with more than 100 distinct…
Ejection of Chondrules from Fluffy MatricesOPEN ACCESS
Sota Arakawa Accepted for publication in ApJ Draft version PDF (OPEN ACCESS) update (8 September 2017): LINK The Astrophysical Journal Volume 846, Number 2 “Chondritic meteorites primarily contain millimeter-sized spherical objects, the so-called chondrules; however,…
The spatial distribution of carbon dust in the early solar nebula and the carbon content of planetesimalsOPEN ACCESS
Hans-Peter Gail, Mario Trieloff accepted by Astronomy & Astrophysics PDF (OPEN ACCESS) “A high fraction of carbon bound in solid carbonaceous material is observed to exist in bodies formed in the cold outskirts of the…
Redox States of Initial Atmospheres Outgassed on Rocky Planets and Planetesimals
Laura Schaefer, Bruce Fegley Jr. The Astrophysical Journal, Volume 843, Number 2 Published 2017, July 12 LINK “The Earth and other rocky planets and planetesimals in the solar system formed through the mixing of materials…
One-pot synthesis of amino acid precursors with insoluble organic matter in planetesimals with aqueous activityOPEN ACCESS
By Yoko Kebukawa, Queenie H. S. Chan, Shogo Tachibana, Kensei Kobayashi, Michael E. Zolensky Science Advances 17 Mar 2017: Vol. 3, no. 3, e1602093 DOI: 10.1126/sciadv.1602093 LINK (OPEN ACCESS) PDF (OPEN ACCESS) “The exogenous delivery…
Chondrule Accretion with a Growing ProtoplanetOPEN ACCESS
Yuji Matsumoto, Shoichi Oshino, Yasuhiro Hasegawa, Shigeru Wakita accepted for publication in ApJ Draft version published: 28 February 2017 PDF (OPEN ACCESS) Update (8 March 2017): LINK The Astrophysical Journal, Volume 837, Number 2 “Chondrules…
Melting of C-Rich Planetesimals and Implications for the Composition of the Ureilite Parent Body
M. Collinet, T. L. Grove 48th Lunar and Planetary Science Conference (2017), Abstract #2052 LINK
Diffusion of Oxygen Isotopes in Thermally Evolving Planetesimals and Size Ranges of Presolar Silicate GrainsOPEN ACCESS
S. Wakita, T. Nozawa, Y. Hasegawa accepted for publication in ApJ PDF (OPEN ACCESS) Update (13 February 2017): LINK “Presolar grains are small particles found in meteorites through their isotopic compositions which are considerably different…
Diversity of the initial rocky planetary building materials at the edge of the solar system
Brownlee, D. E. and Joswiak, D. J. Meteoritics & Planetary Science. doi: 10.1111/maps.12804 First published: 9 December 2016 LINK “Asteroids and comets are surviving members of the vast planetesimal population that was distributed across the…
Meteorites and the RNA World: A Thermodynamic Model of Nucleobase Synthesis within PlanetesimalsOPEN ACCESS
Pearce Ben K. D. and Pudritz Ralph E. Astrobiology November 2016, 16(11): 853-872. doi:10.1089/ast.2015.1451. Online Ahead of Print: November 9, 2016 PDF (OPEN ACCESS) LINK “The possible meteorite parent body origin of Earth’s pregenetic nucleobases…
Early scattering of the solar protoplanetary disk recorded in meteoritic chondrulesOPEN ACCESS
By Yves Marrocchi, Marc Chaussidon, Laurette Piani, Guy Libourel Science Advances 01 Jul 2016: Vol. 2, no. 7, e1601001 DOI: 10.1126/sciadv.1601001 LINK (OPEN ACCESS) Supplementary Materials (PDF) “Meteoritic chondrules are submillimeter spherules representing the major…
The effects of short-lived radionuclides and porosity on the early thermo-mechanical evolution of planetesimals
Tim Lichtenberg, Gregor J. Golabek, Taras V. Gerya, Michael R. Meyer Icarus In Press, Accepted Manuscript, Available online 16 March 2016 doi:10.1016/j.icarus.2016.03.004 Updated (22 March): PDF (OPEN ACCESS) LINK “The thermal history and internal structure…
Forming Chondrites in a Solar Nebula with Magnetically Induced Turbulence
Yasuhiro Hasegawa, Neal J. Turner, Joseph Masiero, Shigeru Wakita, Yuji Matsumoto, Shoichi Oshino Updated (16 March 2016): abstract Yasuhiro Hasegawa et al 2016 ApJ 820 L12 PDF (open access) abstract “Chondritic meteorites provide valuable opportunities…
Thermal evolution and sintering of chondritic planetesimals III. Modelling the heat conductivity of porous chondrite material
Stephan Henke, Hans-Peter Gail, Mario Trieloff updated: 12 April 2016 A&A Volume 589, May 2016 Published online: 12 April 2016 DOI: http://dx.doi.org/10.1051/0004-6361/201527687 LINK PDF (open access) abstract “The construction of models for the internal constitution…
Core solidification and dynamo evolution in a mantle-stripped planetesimal
A. Scheinberg, L. T. Elkins-Tanton, G. Schubert and D. Bercovici Journal of Geophysical Research: Planets Article first published online: 5 JAN 2016 | DOI: 10.1002/2015JE004843 LINK “The physical processes active during the crystallization of a…
A New Mechanism for Chondrule Formation: Radiative Heating by Hot Planetesimals
William Herbst, James P. Greenwood Accepted Nov. 16, 2015 for publication as a Research Note in Icarus PDF (full text) abstract updated on December 10: LINK “We propose that chondrules are formed by radiative heating…
Accretion timescales and style of asteroidal differentiation in an 26Al-poor protoplanetary disk
K.K. Larsen, M. Schiller, M. Bizzarro Geochimica et Cosmochimica Acta In Press, Accepted Manuscript, Available online 8 December 2015 doi:10.1016/j.gca.2015.10.036 LINK “The decay of radioactive 26Al to 26Mg (half-life of 730,000 years) is postulated to…
Evidence for Pebbles in Comets
K.A. Kretke, H.F. Levison Icarus In Press, Accepted Manuscript, Available online 20 August 2015 PDF (full text) abstract
Growth of asteroids, planetary embryos, and Kuiper belt objects by chondrule accretion
Anders Johansen, Mordecai-Mark Mac Low, Pedro Lacerda, Martin Bizzarro Science Advances 17 Apr 2015: Vol. 1 no. 3 e1500109 DOI: 10.1126/sciadv.1500109 PDF (full text) LINK (full text)
Early accretion of protoplanets inferred from a reduced inner solar system 26Al inventory
Martin Schiller, James N. Connelly, Aslaug C. Glad, Takashi Mikouchi, Martin Bizzarro Earth and Planetary Science Letters Volume 420, 15 June 2015, Pages 45–54 doi:10.1016/j.epsl.2015.03.028 LINK
How to form planetesimals from mm-sized chondrules and chondrule aggregates
Daniel Carrera, Anders Johansen, Melvyn B. Davies PDF LINK (full text) LINK
The multifaceted planetesimal formation process
Anders Johansen, Jürgen Blum, Hidekazu Tanaka, Chris Ormel, Martin Bizzarro, Hans Rickman Final version of chapter in Protostars and Planets VI, University of Arizona Press (2014), eds. H. Beuther, R. Klessen, C. Dullemond, Th. Henning…
How Earth was watered Recent findings have wide implications in study of extrasolar life
by Alvin Powell Harvard Gazette, 27 February 2014 LINK
The fate of magmas in planetesimals and the retention of primitive chondritic crusts
Fua RR and Elkins-Tanton LT (2014) Earth and Planetary Science Letters Volume 390, 15 March 2014, Pages 128–137 LINK High abundances of short-lived radiogenic isotopes in the early solar system led to interior melting and…
Magnetic and Nonmagnetic Differentiated Planetesimals
B. P. Weiss, R. Fu, D. L. Shuster, J. Gattacceca, C. R. Suavet, A. J. Irving Workshop on Planetesimal Formation and Differentiation (2013), Abstract #8047 PDF LINK
