Results 51 to 60 of about 5,269 (213)

Forming chondrules in impact splashes. I. Radiative cooling model

, 2014
The formation of chondrules is one of the oldest unsolved mysteries in meteoritics and planet formation. Recently an old idea has been revived: the idea that chondrules form as a result of collisions between planetesimals in which the ejected molten ...
Dullemond, Cornelis Petrus, Johansen, Anders, Stammler, Sebastian Markus   +2 more
core   +1 more source

Accretion of dust by chondrules in a MHD-turbulent solar nebula [PDF]

, 2010
(Abridged) Numerical magnetohydrodynamic (MHD) simulations of a turbulent solar nebula are used to study the growth of dust mantles swept up by chondrules. A small neighborhood of the solar nebula is represented by an orbiting patch of gas at a radius of
Armitage, Augusto Carballido, Balbus, Carballido, Carballido, Ciesla, Ciesla, Cuzzi, Cuzzi, Cuzzi, Cuzzi, Fleming, Fromang, Güttler, Hartmann, Hawley, Krot, Leinhardt, Metzler, Morfill, Ormel, Ormel, Rubin, Shakura, Shu, Stone, Stone, Stone, Trigo-Rodrı´guez, Turner, Turner, Weidenschilling, Zsom, Zsom   +33 more
core   +1 more source

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

Reproduction Experiments of Radial Pyroxene Chondrules Using a Gas-jet Levitation System under Reduced Conditions

The Astrophysical Journal
Reproduction experiments of radial pyroxene (RP) chondrules were carried out using an Ar–H _2 or Ar gas-jet levitation system in a reducing atmosphere in order to simulate chondrule formation in the protoplanetary disk.
Kana Watanabe, Tomoki Nakamura, Tomoyo Morita   +2 more
doaj   +1 more source

Petrology and mineralogy of the Viñales meteorite, the latest fall in Cuba

Science Progress, 2021
The new Cuban chondrite, Viñales, fell on February first, 2019 at Pinar del Rio, northwest of Cuba (22°37′10″N, 83°44′34″W). A total of about 50–100 kg of the meteorite were collected and the masses of individual samples are in a range 2–1100 g.
Feng Yin, Deqiu Dai
doaj   +1 more source

Harvesting the decay energy of $^{26}$Al to drive lightning discharge in protoplanetary discs

, 2017
Chondrules in primitive meteorites likely formed by recrystallisation of dust aggregates that were flash-heated to nearly complete melting. Chondrules may represent the building blocks of rocky planetesimals and protoplanets in the inner regions of ...
Johansen, Anders, Okuzumi, Satoshi
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

Size-selective concentration of chondrules and other small particles in protoplanetary nebula turbulence

, 2000
Size-selective concentration of particles in a weakly turbulent protoplanetary nebula may be responsible for the initial collection of chondrules and other constituents into primitive body precursors. This paper presents the main elements of this process
Barge P., Chhabra A. B., Dodd R. T., Eisenhour D., Goldman I., Hosogawa I., Hughes D. W., Kato S., Keubler K., H., Lynden-Bell D., MacPherson G. J., Mandelbrot B., Markievicz W. J., Maxey M. R., Meneveau C., Richard D., Rubin A., Shakura N. I., Squires K., Squires K., Sreenivasan K. R., Volk H. J., Wang L, Weidenschilling S. J.   +23 more
core   +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

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