Results 41 to 50 of about 3,558 (195)

Ryugu Reference Project: Recommendations from the Measurement Definition Team

Meteoritics &Planetary Science, EarlyView.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

The effect of terrestrial weathering on the mineralogy and petrologic (sub)types of CM chondrites explored by kinetic modeling and laboratory experiments

Meteoritics &Planetary Science, EarlyView.
Abstract Terrestrial weathering alters the chemical and isotopic composition, and mineralogy, of meteorites; its effects on ordinary chondrites are well‐studied, but relatively little is known about the susceptibility of carbonaceous chondrites. We combined laboratory experiments, whereby Chwichiya 002 (C3‐ung find), Murchison (CM2 fall) and Kolang ...
Robin L. Haller, Martin R. Lee, Mark E. Hodson   +2 more
wiley   +1 more source

A Critical Examination of the X-Wind Model for Chondrule and Calcium-rich, Aluminum-rich Inclusion Formation and Radionuclide Production

, 2010
Meteoritic data, especially regarding chondrules and calcium-rich, aluminum-rich inclusions (CAIs), and isotopic evidence for short-lived radionuclides (SLRs) in the solar nebula, potentially can constrain how planetary systems form.
Alan P. Boss, Anderson, Bacciotti, Beckett, Beckett, Blandford, Boley, Boss, Boss, Boss, Bouvier, Chevalier, Chiang, Ciesla, Coffey, Connelly, Connolly, Connolly, Connolly, Cuzzi, Cuzzi, Cuzzi, Cuzzi, Davis, Desch, Desch, Desch, Desch, Desch, Dodd, Dominik, Ebel, Eisner, Fedkin, Fedkin, Feigelson, Fitoussi, Gaidos, Getman, Gooding, Goswami, Goswami, Gounelle, Gounelle, Gounelle, Grossman, H. C. Connolly, Harker, Hewins, Hewins, Hewins, Hsu, Huss, Jacobsen, Jacobsen, Jones, Jones, Jones, Jones, Kita, Kita, Kita, Klerner, Koyama, Krot, Königl, Lauretta, Lee, Lee, Lee, Lee, Levy, Leya, Liffman, Liu, Lodders, Lofgren, Looney, M. A. Morris, MacPherson, MacPherson, MacPherson, McKeegan, Meibom, Meyer, Miura, Morris, Murty, Ouellette, Ouellette, Ouellette, Palme, Paque, Paque, Pilipp, Preibisch, Pudritz, Ray, Russell, Russell, S. J. Desch, Sahijpal, Sanders, Sargent, Scott, Shu, Shu, Shu, Simon, Simon, Skinner, Srinivasan, Tachibana, Takigawa, Teitler, Tominaga, Umeda, Umeda, Ushikubo, Vanhala, Wadhwa, Wadhwa, Ward-Thompson, Wasserburg, Wasserburg, Weidenschilling, Weidenschilling, Weisberg, Yu   +128 more
core   +1 more source

Gamma-ray bursts and X-ray melting of material as a potential source of chondrules and planets [PDF]

, 2004
The intense radiation from a gamma-ray burst (GRB) is shown to be capable of melting stony material at distances up to 300 light years which subsequently cool to form chondrules.
Carr, A. J., Duggan, P., French, J., Hanlon, L., McBreen, B., McBreen, S., Metcalfe, L., Winston, E.   +7 more
core   +3 more sources

Aqueous alteration in C2‐ung Bells through the analysis of carbonates – Does a CR origin ring true?

Meteoritics &Planetary Science, EarlyView.
Abstract Bells is an ungrouped carbonaceous chondrite that has in recent years been proposed as a CR‐an. This link to CR chondrites has previously been identified through the analysis of anhydrous silicates, for example, oxygen isotopic compositions of olivine (Marrocchi et al., 2023).
L. J. Riches, M. D. Suttle, I. A. Franchi, X. Zhao, M. M. Grady   +4 more
wiley   +1 more source

How to form planetesimals from mm-sized chondrules and chondrule aggregates [PDF]

Astronomy & Astrophysics, 2015
The size distribution of asteroids and Kuiper belt objects in the solar system is difficult to reconcile with a bottom-up formation scenario due to the observed scarcity of objects smaller than $\sim$100 km in size. Instead, planetesimals appear to form top-down, with large $100-1000$ km bodies forming from the rapid gravitational collapse of dense ...
Daniel Carrera, Anders Johansen, Melvyn B. Davies   +2 more
openaire   +2 more sources

Chondrule size and related physical properties: a compilation and evaluation of current data across all meteorite groups

, 2014
The examination of the physical properties of chondrules has generally received less emphasis than other properties of meteorites such as their mineralogy, petrology, and chemical and isotopic compositions.
Biltz, Alison E., Corbett, Bernadette M., Ebel, Denton S., Friedrich, Jon M., Iotzov, Ivan V., Khan, Wajiha S., Weisberg, Michael K., Wolman, Matthew D.   +7 more
core   +1 more source

Method Development for the Analysis of Carbonaceous Chondrites by Laser Desorption/Ionization and Secondary Ion Time‐of‐Flight Mass Spectrometry

Journal of Mass Spectrometry, Volume 61, Issue 4, April 2026.
ABSTRACT This study focuses on the development of a laser desorption/ionization mass spectrometric method for analyzing carbonaceous chondrites, meteorites that may hold clues to the origin of life. Since carbonaceous chondrites are only available in small quantities, we initially designed an artificial meteorite material (the mineral forsterite) doped
Edita Rados, Johannes Frank, Ernst Pittenauer   +2 more
wiley   +1 more source

Chondrule Destruction via Dust Collisions in Shock Waves

The Astrophysical Journal
A leading candidate for the heating source of chondrules and igneous rims is shock waves. This mechanism generates high relative velocities between chondrules and dust particles.
Yuji Matsumoto, Kosuke Kurosawa, Sota Arakawa   +2 more
doaj   +1 more source

Small‐scale elemental abundance variations in Ryugu particles from touchdown 1

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 580-599, April 2026.
Abstract Ryugu materials closely resemble CI chondrites' mineralogical, chemical, and isotopic compositions; yet minor but resolvable differences in certain elemental abundances are evident. In this study, the bulk chemical compositions of eight individual Ryugu particles (1.5–4.3 mg) from the first touchdown site (TD1) were determined using triple ...
Karina López García, Tetsuya Yokoyama, Ikshu Gautam, Makiko K. Haba, Tsuyoshi Iizuka, Nao Nakanishi, Ryota Fukai   +6 more
wiley   +1 more source