Výsledky vyhledávání - "Muawia H. Shaddad"

Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith

Autor: Yoko Kebukawa, Michael. E. Zolensky, Cyrena A. Goodrich, Motoo Ito, Nanako O. Ogawa, Yoshinori Takano, Naohiko Ohkouchi, Kento Kiryu, Motoko Igisu, Takazo Shibuya, Matthew A. Marcus, Takuji Ohigashi, James Martinez, Yu Kodama, Muawia H. Shaddad, Peter Jenniskens, Scott Sandford

Publikováno v: Meteoritics and Planetary Science, vol 56, iss 7

The Almahata Sitta (AhS) meteorite is a unique polymict ureilite. Recently, carbonaceous chondritic lithologies were identified in AhS. Organic matter (OM) is ubiquitously found in primitive carbonaceous chondrites. The molecular and isotopic charact

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25f4e0045461012aa1c3e1f19dfb6300
https://doi.org/10.1111/maps.13713

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Detection of Cosmic Fullerenes in the Almahata Sitta Meteorite: Are They an Interstellar Heritage?

Autor: Hassan Sabbah, Mickaël Carlos, Peter Jenniskens, Muawia H. Shaddad, Jean Duprat, Cyrena A. Goodrich, Christine Joblin

Publikováno v: The Astrophysical Journal
The Astrophysical Journal, 2022, 931 (2), pp.91. ⟨10.3847/1538-4357/ac69dd⟩

Buckminsterfullerene, C60, is the largest molecule observed to date in interstellar and circumstellar environments. The mechanism of formation of this molecule is actively debated. Despite targeted searches in primitive carbonaceous chondrites, no un

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5a23c7e25f2ae7e46d74b9e358fc3b1
http://arxiv.org/abs/2208.10122

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The first samples from Almahata Sitta showing contacts between ureilitic and chondritic lithologies: Implications for the structure and composition of asteroid 2008 TC 3

Autor: Marc Fries, Robert J. Macke, Victoria E. Hamilton, Muawia H. Shaddad, D. Kent Ross, Michael E. Zolensky, Edward D. Young, Henner Busemann, I. E. Kohl, Peter Jenniskens, Noriko T. Kita, A. M. Fioretti, M. E. I. Riebe, Hilary Downes, C. A. Goodrich, Takahiro Hiroi

Publikováno v: Meteoritics & planetary science (2019). doi:10.1111/maps.13390
info:cnr-pdr/source/autori:Goodrich, Cyrena Anne; Zolensky, Michael E.; Fioretti, Anna Maria; Shaddad, Muawia H.; Downes, Hilary; Hiroi, Takahiro; Kohl, Issaku; Young, Edward D.; Kita, Noriko T.; Hamilton, Victoria E.; Riebe, My E., I; Busemann, Henner; Macke, Robert J.; Fries, M.; Ross, D. Kent; Jenniskens, Peter/titolo:The first samples from Almahata Sitta showing contacts between ureilitic and chondritic lithologies: Implications for the structure and composition of asteroid 2008 TC3/doi:10.1111%2Fmaps.13390/rivista:Meteoritics & planetary science/anno:2019/pagina_da:/pagina_a:/intervallo_pagine:/volume
Meteorit Planet Sci

Almahata Sitta (AhS), an anomalous polymict ureilite, is the first meteorite observed to originate from a spectrally classified asteroid (2008 TC(3)). However, correlating properties of the meteorite with those of the asteroid is not straightforward

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d337c5e7d9bdbef14fbe236b20b9e675
https://doi.org/10.1111/maps.13390

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Meteoritic Evidence for a Ceres-sized Water-rich Carbonaceous Chondrite Parent Asteroid

Autor: Michael E. Zolensky, A. H. Treiman, V. E. Hamilton, Muawia H. Shaddad, C. A. Goodrich, Harold C. Connolly

Publikováno v: Nat Astron

Carbonaceous chondrite meteorites record the earliest stages of Solar System geological activities and provide insight into their parent bodies’ histories. Some carbonaceous chondrites are volumetrically dominated by hydrated minerals, providing ev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::17f91c3985c4a51eacf7850c2cc40611
https://pubmed.ncbi.nlm.nih.gov/33681472

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Chromium Isotopic Evidence for Mixing of NC and CC Reservoirs in Polymict Ureilites: Implications for Dynamical Models of the Early Solar System

Autor: Peter Jenniskens, Edward D. Young, Matthew E. Sanborn, C. A. Goodrich, Kevin J. Walsh, Michael E. Zolensky, Qing-Zhu Yin, I. E. Kohl, R. Terik Daly, Muawia H. Shaddad, D. Frank

Publikováno v: Planet Sci J
The planetary science journal, vol 2, iss 1

Nucleosynthetic isotope anomalies show that the first few million years of solar system history were characterized by two distinct cosmochemical reservoirs, CC (carbonaceous chondrites and related differentiated meteorites) and NC (the terrestrial pl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b93d8b30c175be8083dacaca8015bff
https://doi.org/10.3847/psj/abd258

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Fe-bearing phases in a ureilite fragment from the asteroid 2008 TC3(= Almahata Sitta meteorites): A combined Mössbauer spectroscopy and X-ray diffraction study

Autor: Yassir A. Abdu, Peter Jenniskens, Abbasher M. Gismelseed, Muawia H. Shaddad, Harish Verma

Publikováno v: Meteoritics & Planetary Science. 49:1485-1493

The iron-bearing phases in a ureilite fragment (AS#051) from the Almahata Sitta meteorite are studied using Mossbauer spectroscopy, X-ray diffraction (XRD), and electron microprobe analysis (EMPA). AS#051 has a typical ureilite texture of medium- to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7a3e40f9efe730b1463e1119dde66db4
https://doi.org/10.1111/maps.12345

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Thermophysical properties of Almahata Sitta meteorites (asteroid 2008 TC3) for high-fidelity entry modeling

Autor: Derek W. G. Sears, Peter Jenniskens, Hannah Böhrk, Stefan Loehle, Henning Elsäβer, Thomas Bauer, Muawia H. Shaddad, Michael E. Zolensky

Asteroid 2008 TC3 was characterized in a unique manner prior to impacting Earth's atmosphere, making its October 7, 2008, impact a suitable field test for or validating the application of high-fidelity re-entry modeling to asteroid entry. The accurat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eff636402f4c7f7b49cf50caea69307a
https://doi.org/10.1111/maps.12788

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