Results 31 to 40 of about 88,472 (171)

Vertical profiling of shock attenuation at the Rochechouart impact structure, France

Meteoritics &Planetary Science, EarlyView.
Abstract Rochechouart, south‐west France, is a complex impact structure. Here, we present the first report of shock barometry of quartz from what are likely parautochthonous basement units at depth, based on samples from the 2017 C.I.R.I.R drilling campaign. The crystallographic orientations of 725 sets of PDFs in 512 quartz grains in samples from four
P. Struzynska, S. Alwmark, C. Alwmark, M. H. Poelchau, P. Lambert   +4 more
wiley   +1 more source

From stellar nebula to planets: the refractory components [PDF]

, 2014
We computed the abundance of refractory elements in planetary bodies formed in stellar systems with solar chemical composition by combining models for chemical composition and planet formation.
Alibert, Yann, Cabral, Nahuel, Leya, Ingo, Marboeuf, Ulysse, Mezger, Klaus, Thiabaud, Amaury   +5 more
core   +1 more source

Apatite in Bennu samples indicates multiple stages of aqueous alteration

Meteoritics &Planetary Science, EarlyView.
Abstract Calcium phosphates are ubiquitous in planetary materials, including samples returned from asteroid Bennu by the OSIRIS‐REx mission. We characterized apatite [Ca5(PO4)3(F,Cl,OH)] grains in Bennu samples by scanning electron microscopy, electron microprobe analysis, and transmission electron microscopy to investigate their compositions, mineral ...
Laura B. Seifert, T. M. Erickson, L. P. Keller, J. J. Barnes, K. Thomas‐Keprta, L. Le, J. Gorce, Z. Rahman, T. J. Zega, H. C. Connolly Jr, D. S. Lauretta   +10 more
wiley   +1 more source

Geochemical and petrographic re‐evaluation of ungrouped iron meteorites from Western Australia

Meteoritics &Planetary Science, EarlyView.
Abstract Under the current classification scheme, ungrouped irons make up ~11% of all recognized iron meteorites. A further ~7% of iron meteorites are currently classified as simply “irons” and are yet to be fully classified. To potentially classify these meteorites, newer approaches, including either statistical modeling or advanced geochemical ...
Ashley Rogers, Lucy Forman, Kai Rankenburg, Rachel Kirby, Martin Danišík, Victoria Cousins, Gretchen K. Benedix   +6 more
wiley   +1 more source

From the microcosm of the atomic nuclei to the macrocosm of the stars

, 2007
A necessary condition for the reliable modelling of the structure or evolution of the stars and of their concomitant nucleosynthesis is the availability of good quality nuclear data in a very wide area of the chart of nuclides. This short review presents
Arnould, M., Katsuma, M.
core   +1 more source

Women Scientists Who Made Nuclear Astrophysics [PDF]

, 2018
Female role models reduce the impact on women of stereotype threat, i.e., of being at risk of conforming to a negative stereotype about one's social, gender, or racial group [1,2].
Aliotta, Marialuisa, Chantereau, William, Collet, Remo, Curtis, Sanjana, de Mink, Selma E., den Hartogh, Jacqueline, Di Criscienzo, Marcella, Font, Andreea S., Hampton, Christine V., Isar, P. Gina, Kaiser, Etienne A., Kankainen, Anu, Kobayashi, Chiaki, Lederer-Woods, Claudia, Lugaro, Maria, Niemczura, Ewa, Nordström, Birgitta, Papakonstantinou, Panagiota, Rauscher, Thomas, Spyrou, Artemis, Thielemann, Friedrich Karl, Travaglio, Claudia, Van Eck, Sophie, Venkatesan, Aparna, Yavahchova, Mariya, Özkan, Nalan, Ćiprijanović, Aleksandra   +26 more
core   +3 more sources

Shock metamorphic effects in Itokawa phosphates: A comparison with megaregolith‐derived meteorites

Meteoritics &Planetary Science, EarlyView.
Abstract Returned regolith samples from the asteroid Itokawa provide a unique opportunity to compare shock metamorphic effects in unconsolidated regolith materials with those preserved in lithified meteorites, that is, megaregolith. We analyzed four Itokawa particles (Ueda—RA‐QD02‐0519, Narahara—RA‐QD02‐0573, Domon—RA‐QD02‐0588, Ishiuchi—RX‐MD03‐0212 ...
E. Dobrică, A. N. Krot, A. J. Brearley
wiley   +1 more source

Measuring mean densities of delta Scuti stars with asteroseismology. Theoretical properties of large separations using TOUCAN

, 2014
We aim at studying the theoretical properties of the regular spacings found in the oscillation spectra of delta Scuti stars. We performed a multi-variable analysis covering a wide range of stellar structure and seismic properties and model parameters ...
A. García Hernández, A. Moya, Antoci, Baglin, Breger, Breger, Breger, C. Rodrigo, Catala, Christensen-Dalsgaard, Dupret, Dziembowski, Dziembowski, E. Solano, García Hernández, García Hernández, Gilliland, Gough, Goupil, Handler, J. C. Suárez, J. R. Rodón, Jackson, Kallinger, Kjeldsen, Lebreton, Lignières, Lignières, MacGregor, Mantegazza, Matthews, Metcalfe, Morel, Morel, Moya, Moya, Moya, Moya, Moya, Paxton, Perryman, Poretti, Poretti, Poretti, R. Garrido, Reese, Reese, Reese, Reese, Soufi, Suárez, Suárez, Suárez, Suárez, Tassoul, Tingley, Uytterhoeven, Uytterhoeven, Walker, Winn, Wright, Zahn, Zwintz   +62 more
core   +1 more source

Drelów, the 13th and latest meteorite fall in Poland—A typical L6 chondrite with shock veins

Meteoritics &Planetary Science, EarlyView.
Abstract On Tuesday, February 18, 2025, at 18:04:14 local time, residents of Poland observed a bright fireball registered by many Polish fireball stations belonging to the Skytinel Network established a few months before by Mateusz Żmija. Thus, the meteoroid's orbit, atmospheric trajectory, and the strewn field were calculated, and over 70 fragments ...
Addi Bischoff, Krzysztof Szopa, Jean‐Alix Barrat, Stig Bartel, Jasper Berndt, Tommaso Di Rocco, Dieter Heinlein, Stephan Klemme, Tomasz Krzykawski, Björn Lehnert, Agnieszka Mirek, Andreas Pack, Markus Patzek, Marie Pichotta, Maximilian P. Reitze, Stefan Ruchti, Philippe Schmitt‐Kopplin, Karl Wimmer, Mateusz Żmija   +18 more
wiley   +1 more source

Ultraviolet C (UV‐C) Light Therapy Inhibits Pathogens Associated With Equine Keratomycosis at Different Corneal Depths—An Ex Vivo Study

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objective To assess if an inexpensive, commercially available ultraviolet C (UV‐C) light device with a peak emission of 275 nm can inhibit equine keratomycosis‐associated pathogens located at different corneal depths in an ex vivo model. Methods A controlled, randomized experimental design.
Mona Hoerdemann, Dipak K. Sahoo, Rachel A. Allbaugh, Melissa A. Kubai   +3 more
wiley   +1 more source