Search Results - formation and evolution of the Solar System

Ultra-fine dark matter structure in the solar neighbourhood by Fantin, Daniele S.M.

“…When applied in a cosmological context,this method becomes a powerful instrument to reproduce and analyse the complete multiple merger history of a Milky Way-like system. The results obtained simulating the Galactic halo suggest that the velocity distribution in the solar neighbourhood after an evolution time corresponding to the lifetime of our galaxy (≃ 14Gyr) is smooth. …”
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Despinning and shape evolution of Saturn's moon Iapetus triggered by a giant impact by Kuchta, M., Tobie, G., Miljkovic, Katarina, Behounková, M., Soucek, O., Choblet, G., Cadek, O.

“…Iapetus possesses two spectacular characteristics: (i) a high equatorial ridge which is unique in the Solar System and (ii) a large flattening (. a-. c=. 34. km) inconsistent with its current spin rate. …”
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Evidence for extremely rapid magma ocean crystallization and crust formation on Mars by Bouvier, L., Costa, M., Connelly, J., Jensen, N., Wielandt, D., Storey, M., Nemchin, Alexander, Whitehouse, M., Snape, J., Bellucci, J., Moynier, F., Agranier, A., Gueguen, B., Schönbächler, M., Bizzarro, M.

“…Thus, a primordial crust existed on Mars by this time and survived for around 100 Myr before it was reworked, possibly by impacts4,5, to produce magmas from which the zircons crystallized. Given that formation of a stable primordial crust is the end product of planetary differentiation, our data require that the accretion, core formation and magma ocean crystallization on Mars were completed less than 20 Myr after the formation of the Solar System. …”
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Coordinated Analysis of Primordial Components within Primitive Astromaterials: Implications for the Presolar Environment and the Formation of the Protoplanetary Disk by Nevill, Nicole Dawn

“…The smallest and oldest astromaterials recorded processes leading to presolar and Solar System formation. This thesis documents the first successful petrographic analyses of these astromaterials using unique methodologies and high-resolution techniques down to the atomic level. …”
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Cygnus X-1 contains a 21-solar mass black hole-Implications for massive star winds by Miller-Jones, James, Bahramian, Arash, Orosz, J.A., Mande, I., Gou, L., Maccarone, T.J., Neijsse, C.J., Zhao, X., Ziółkowski, J., Reid, M.J., Uttley, P., Zheng, X., Byun, D.Y., Dodson, R., Grinberg, V., Jung, T., Kim, J.S., Marcote, B., Markoff, S., Rioja, M.J., Rushton, A.P., Russell, D.M., Sivakoff, G.R., Tetarenko, A.J., Tudose, V., Wilms, J.

“…The formation of such a high-mass black hole in a high-metallicity system (within the Milky Way) constrains wind mass loss from massive stars.…”
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Photo-driven bioelectrochemical photocathode with polydopamine-coated TiO2 nanotubes for self-sustaining MoS2 synthesis to facilitate hydrogen evolution by Zeng, L., Li, X., Fan, S., Zhang, M., Yin, Z., Tade, Moses, Liu, S.

“…For this photo-driven coupling system, the continuous formation of MoS2 catalyst is more beneficial for efficient hydrogen generation without external bias assistance. …”
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Iron and Stony-Iron Meteorites by Benedix, Gretchen, Haack, H., McCoy, T.

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Microwave assisted synthesis and photocatalytic activity of ZNS and CDS quantum dot systems by Soltani, Nayereh

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Wind Mass-loss Rates of Stripped Stars Inferred from Cygnus X-1 by Neijssel, C.J., Vinciguerra, S., Vigna-Gómez, A., Hirai, R., Miller-Jones, James, Bahramian, Arash, Maccarone, T.J., Mandel, I.

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Subsurface morphology and scaling of lunar impact basins by Miljkovic, Katarina, Collins, G., Wieczorek, M., Johnson, B., Soderblom, J., Neumann, G., Zuber, M.

“…Our new temperature-dependent impact-scaling relationships provide estimates of impact conditions and transient crater diameters for the majority of impact basins mapped by GRAIL. As the formation of lunar impact basins is associated with the first ~700 Myr of the solar system evolution when the impact flux was considerably larger than the present day, our revised impact scaling relationships can aid further analyses and understanding of the extent of impact bombardment on the Moon and terrestrial planets in the early solar system.…”
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Geochemistry and chronology of the bunburra rockhole ungrouped achondrite by Spivak-Birndorf, L., Bouvier, A., Benedix, G., Hammond, S., Brennecka, G., Howard, K., Rogers, N., Wadhwa, M., Bland, Phil, Spurný, P., Towner, Martin

“…The 207Pb-206Pb absolute chronometer is also disturbed in Bunburra Rockhole minerals, but a whole-rock isochron provides a re-equilibration age of ~4.1 Ga, most likely caused by impact heating.The mineralogy, geochemistry, and chronology of Bunburra Rockhole demonstrate the similarities of this achondrite to the eucrites, and suggest that it formed from a parent melt with a composition similar to that for noncumulate eucrites and subsequently experienced a thermal history and evolution comparable to that of eucritic basalts. This implies the formation of multiple differentiated parent bodies in the early solar system that had nearly identical bulk elemental compositions and petrogenetic histories, but different oxygen isotope compositions inherited from the solar nebula.…”
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