Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Wladimir Neumann"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The formation of planets in our solar system encompassed various stages of accretion of planetesimals that formed in the protoplanetary disk within the first few million years at different distances to the sun. Their chemical diversity is re
Externí odkaz:
https://doaj.org/article/04975bb2769840b0be47b9a6ab4bd3e4
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 10, p 196 (2023)
The history of accretion and differentiation processes in the planetesimals is provided by various groups of meteorites. Sampling different parent body layers, they reveal the circumstances of the metal–silicate segregation and the internal structu
Externí odkaz:
https://doaj.org/article/8ed889bbd6ae4fcba0bf494622f655b5
Publikováno v:
Nature Astronomy. 7:524-533
Low-albedo asteroids preserve a record of the primordial solar system planetesimals and the conditions in which the solar nebula was active. However, the origin and evolution of these asteroids are not well-constrained. Here we measured visible and n
Autor:
Philip M. Reger, Yvonne Roebbert, Wladimir Neumann, Abdelmouhcine Gannoun, Marcel Regelous, Winfried H. Schwarz, Thomas Ludwig, Mario Trieloff, Stefan Weyer, Audrey Bouvier
Publikováno v:
Geochimica et Cosmochimica Acta
Geochimica et Cosmochimica Acta, In press, 343, pp.33-48. ⟨10.1016/j.gca.2022.12.025⟩
Geochimica et Cosmochimica Acta, In press, 343, pp.33-48. ⟨10.1016/j.gca.2022.12.025⟩
Achondrite meteorites are remnants of the earliest planetary differentiation processes in the Solar System. They have been used to anchor short-lived radiochronometers to absolute ages determined from long-lived radiochronometers. More specifically,
Autor:
Alessandro Morbidelli, Qing-Zhu Yin, Harry Becker, Natalia Artemieva, Wladimir Neumann, Kai Wünnemann, Gregory J. Archer, Meng-Hua Zhu, David C. Rubie, James M.D. Day
Publikováno v:
Nature Astronomy. 5:1286-1296
Abundances of the highly siderophile elements (HSEs) in silicate portions of Earth and the Moon provide constraints on the impact flux to both bodies, but only since ~100 Myr after the beginning of the Solar System (hereafter tCAI). The earlier impac
Accretion processes in protoplanetary disks produce a diversity of small bodies. In our solar system, such bodies played a crucial role in potentially multiple reshuffling events and in both early and late accretion of planets. Application of thermo-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b3c13b559c7533f33b092728f2c5566
https://doi.org/10.5194/epsc2022-176
https://doi.org/10.5194/epsc2022-176
Autor:
Audrey Bouvier, Ning Ma, Wladimir Neumann, Adrien Neri, Winfried H. Schwarz, Thomas Ludwig, Mario Trieloff, Hubert Klahr
Isotopic anomalies in meteorites have revealed two reservoirs of planetesimal formation corresponding to non-carbonaceous (NC) and carbonaceous (C) compositions sampling the inner and more outer regions of the disc respectively (Kruijer et al. 2020),
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f906005e6b4c2eb336b2cfc0f03bffd
https://doi.org/10.5194/epsc2021-846
https://doi.org/10.5194/epsc2021-846
Introduction Large and Low-albedo asteroids contain less altered materials that provide information related to the origin and evolution of the solar system and the conditions in which the solar nebula was active. Whether all these large asteroids sha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fc9a8015d6edcbea82e07b2b2b1b545
https://doi.org/10.5194/epsc2021-855
https://doi.org/10.5194/epsc2021-855
Autor:
Wladimir Neumann, Matthias Grott, Mario Trieloff, Ralf Jaumann, Jens Biele, Maximilian Hamm, Ekkehard Kührt, Naoya Sakatani
Introduction: Observations of C-type NEAs and properties of carbonaceous chondrites indicate a high porosity of C-type asteroids. Hayabusa2 demonstrated that Ryugu is a low-density rubble-pile[1] dominated by large surface boulders[2]. Boulder therma
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f7941aa876e34a29c8a6bdc5629d972
https://doi.org/10.5194/epsc2021-177
https://doi.org/10.5194/epsc2021-177
Autor:
Wladimir Neumann, Mario Trieloff, Thomas Ludwig, Ning Ma, Adrien Néri, Audrey Bouvier, Winfried H. Schwarz, Hubert Klahr
Publikováno v:
Goldschmidt2021 abstracts.