Results 51 to 60 of about 88,144 (207)

The fall of the Haag (LL4‐6) chondrite breccia—Just 8 years after the nearby fall Stubenberg (LL6)

Meteoritics &Planetary Science, EarlyView.
Abstract On October 24, 2024, an impressive fireball was visible over Austria. After the possible strewn field was calculated, the first sample of the Haag meteorite, with a mass of 8.76 g, was discovered on November 2, 2024, 8 days after the fireball event. Four more samples were found afterward putting the total sample mass at about 151 g.
Addi Bischoff, Markus Patzek, Jean‐Alix Barrat, Stig Bartel, Jasper Berndt, Henner Busemann, Tommaso Di Rocco, Mattias Ek, Manuela A. Fehr, Dieter Heinlein, Daniela Krietsch, Björn Lehnert, Colin Maden, Oscar Marchhart, Martin Martschini, Silke Merchel, Andreas Pack, Andrea Patzer, Marie Pichotta, Maximilian P. Reitze, Philippe Schmitt‐Kopplin, Maria Schönbächler, Leon Thannheiser, Iris Weber, Alexander Wieser, Karl Wimmer   +25 more
wiley   +1 more source

Sulfide–Metal Assemblages on CR2 Chondrule Rims: Products of Nebular Fission–Sulfidization and Parent Body Oxidation–Serpentinization

Meteoritics &Planetary Science, EarlyView.
Abstract We conducted a scanning electron microscopy (SEM) and transmission electron microscopy (TEM) study of sulfide–metal assemblages (SMAs) in minimally to moderately altered CR2 chondrites. The assemblages occur on chondrule rims and consist of kamacite cores rimmed by pyrrhotite.
S. A. Singerling, A. J. Brearley
wiley   +1 more source

Stellar evolution and modelling stars

, 2017
In this chapter I give an overall description of the structure and evolution of stars of different masses, and review the main ingredients included in state-of-the-art calculations aiming at reproducing observational features.
A. Bressan, A. Dotter, A. Maeder, A. Miglio, A. Pietrinferni, A. Weiss, A.M. Serenelli, A.M. Serenelli, A.M. Serenelli, B.E.J. Pagel, C. Angulo, C.A. Iglesias, C.J. Conselice, D. Cordier, D. Huber, D. Maoz, D. Mihalas, D. Reimers, D. Saumon, D.A. Vandenberg, D.G. Hummer, D.R. Alexander, E. Böhm-Vitense, E. Caffau, E.G. Adelberger, E.G. Adelberger, F. Herwig, F. Matteucci, F.J. Rogers, F.J. Rogers, G. Steigman, H. Costantini, H. Kjeldsen, I. Hubeny, J. Bland-Hawthorn, J. Choi, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J. Christensen-Dalsgaard, J.-P. Cox, J.-P. Zahn, J.N. Bahcall, J.N. Bahcall, J.N. Winn, J.W. Ferguson, K.C. Schlaufman, L. Casagrande, L. Girardi, L. Silva Da, M. Asplund, M. Camenzind, M. Gabriel, M. Haft, M. Marta, M. Peimbert, M. Pinsonneault, M. Salaris, M. Schwarzschild, M. Schönberg, N. Grevesse, N. Itoh, N. Itoh, N.R. Badnell, P. Eggenberger, P. Kumar, R. Jimenez, R. Trampedach, S. Basu, S. Cassisi, S. Cassisi, S. Deheuvels, S. Deheuvels, S. Deheuvels, S. Turcotte, S.J. Smartt, T. Constantino, T.R. Bedding, V. Silva Aguirre, V. Silva Aguirre, V. Silva Aguirre, V. Silva Aguirre, V.M. Canuto, V.M. Canuto, W. Unno, W.P. Ledoux   +84 more
core   +1 more source

Chromite in main group pallasite meteorites: Accessory mineral tracing planetesimal differentiation

Meteoritics &Planetary Science, EarlyView.
Abstract Main group pallasite meteorites (PMG) are samples of an early, highly differentiated magmatic planetesimal dominated by olivine and metal‐sulfide‐phosphide assemblages with accessory chromite among other phases. This mineralogy reflects mantle‐ and core‐related reservoirs, but the relative contributions of each and the overall petrogenesis are
Seann J. McKibbin, Lutz Hecht, Matthew S. Huber, Christina Makarona, Stepan M. Chernonozhkin, Philippe Claeys, Steven Goderis   +6 more
wiley   +1 more source

JAXA curation for Bennu samples returned by the NASA's OSIRIS‐REx mission

Meteoritics &Planetary Science, EarlyView.
Abstract NASA's OSIRIS‐REx mission successfully collected and returned ~121.6 g of bulk samples from the B‐type, near‐Earth asteroid (101955) Bennu to Earth in September 2023. Upon returning to Earth, the samples were transported to the NASA Johnson Space Center where most of the samples have been stored and processed.
Rui Tahara, Kentaro Hatakeda, Masahiro Nishimura, Kasumi Yogata, Ryota Fukai, Akiko Miyazaki, Toru Yada, Yuma Enokido, Masanao Abe, Seiya Kawasaki, Ryosuke Sakurai, Tatsuaki Okada, Cedric Pilorget, Jean‐Pierre Bibring, Vincent Hamm, Lionel Lourit, Damien Loizeau, Lucie Riu, Koki Yumoto, Yuichiro Cho, Seiji Sugita, Shumpei Nakahara, Shoki Mori, Yuta Aikyo, Shingo Kameda, Roger Stabbins, Yuta Shimizu, Hideaki Miyamoto, Yuya Hitomi, Arisa Nakano, Kana Nagashima, Haruna Sugahara, Shino Suzuki, Shunta Kimura, Tomohiro Usui   +34 more
wiley   +1 more source

The effect of pressure on dihedral angle between liquid Fe‐S and orthopyroxene: Implication for percolative core formation in planetesimals and planetary embryos

Meteoritics &Planetary Science, EarlyView.
Abstract During precursor stages of planet formation, many planetesimals and planetary embryos are considered to have differentiated, forming an iron‐alloy core and silicate mantle. Percolation of liquid iron‐alloy in solid silicates is one of the major possible differentiation processes in these small bodies.
Takumi Miura, Hidenori Terasaki, Hyu Takaki, Kotaro Kobayashi, Geoffrey David Bromiley, Takashi Yoshino   +5 more
wiley   +1 more source

The formation of planetary disks and winds: an ultraviolet view

, 2008
Planetary systems are angular momentum reservoirs generated during star formation. This accretion process produces very powerful engines able to drive the optical jets and the molecular outflows.
A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.I. Gómez de Castro, A.P. Goodson, Ana I. Gómez de Castro, B. Rekowski von, C. Ferro-Fontán, D.R. Ardila, E. Bergin, E. Bergin, E. Gullbring, F. Hamann, F. Krause, F.K. Lamb, G.J. Herczeg, G.J. Herczeg, Herczeg, Herczeg, J. Bouvier, J. Ferreira, J. Frank, J. Muzerolle, J.C. Raymond, M.V. Penston, N. Kappelmann, P. Ghosh, P. Hartigan, P.P. Petrov, S. Basu, S.A. Lamzin, T. Preibish   +40 more
core   +1 more source

Ultraviolet C (UV‐C) Light Therapy for Equine Ulcerative Keratomycosis—An In Vitro Study

Veterinary Ophthalmology, EarlyView.
ABSTRACT Objectives To assess if an affordable, commercially available 275 nm ultraviolet C (UV‐C) device can inhibit fungal pathogens associated with equine keratomycosis and to establish the optimal exposure time/dose required in vitro. Methods Fungal inhibition zone surface areas of isolates from two fungal genera (Aspergillus and Fusarium spp ...
Mona Hoerdemann, Dipak K. Sahoo, Rachel A. Allbaugh, Melissa A. Kubai   +3 more
wiley   +1 more source

Elemental ratios in stars vs planets

, 2015
Context. The chemical composition of planets is an important constraint for planet formation and subsequent differentiation. While theoretical studies try to derive the compositions of planets from planet formation models in order to link the composition
Alibert, Yann, Leya, Ingo, Marboeuf, Ulysse, Mezger, Klaus, Thiabaud, Amaury   +4 more
core   +1 more source

The Arctic Ocean Double Estuary: Quantification and Forcing Mechanisms

AGU Advances, Volume 6, Issue 6, December 2025.
Abstract The Arctic Ocean double estuary is a “three‐legged” overturning system in which inflowing waters are converted into both lighter and denser waters before being exported equatorwards. As the northern terminus of the Atlantic Meridional Overturning Circulation (MOC), it thus both affects, and is affected by, the Atlantic MOC.
Nikki J. Brown, Alberto C. Naveira Garabato, Sheldon Bacon, Yevgeny Aksenov, Takamasa Tsubouchi, Mattias Green, Ben Lincoln, Tom Rippeth, Daniel L. Feltham   +8 more
wiley   +1 more source