Results 41 to 50 of about 43,521 (279)
Organic and volatile elements in the solar system
EPJ Web of Conferences, 2012 Chondrites and comets have accreted primitive materials from the early solar system. Those materials include organics, water and other volatile components.
Remusat L.
doaj +1 more source
Stellar Outbursts and Chondrite Composition
The Astrophysical Journal, 2023 The temperatures of observed protoplanetary disks are not sufficiently high to produce the accretion rate needed to form stars, nor are they sufficient to explain the volatile depletion patterns in CM, CO, and CV chondrites and terrestrial planets.
Min Li +5 more
doaj +1 more source
Tracing the Ingredients for a Habitable Earth from Interstellar Space through Planet Formation [PDF]
, 2015 We use the C/N ratio as a monitor of the delivery of key ingredients of life to nascent terrestrial worlds. Total elemental C and N contents, and their ratio, are examined for the interstellar medium, comets, chondritic meteorites and terrestrial planets;
Bergin, Edwin A. +4 more
core +2 more sources
Meteoritics and Planetary Science, 2019 Tochilinite/cronstedtite intergrowths are commonly observed as alteration products in CM chondrite matrices, but the conditions under which they formed are still largely underconstrained due to their scarcity in terrestrial environments.
L. Vacher +5 more
semanticscholar +1 more source
“CY1” Chondrites Produced by Impact Dehydration of the CI Chondrite Parent Body
The Astrophysical Journal LettersThe recently proposed Yamato-type (CY) chondrites share significant similarities with CI chondrites and Ryugu. We present major and trace elemental, Re–Os, and mass-independent Ti, Cr, and Fe isotope data for seven CY chondrites. The elemental data along
Ke Zhu +6 more
doaj +1 more source
Mikrometeorite und ihr Ursprung im Sonnensystem: Außerirdischer Staub zum Anfassen
Physik in unserer Zeit, EarlyView.Mit einer Größe, die der Dicke eines Haares entspricht, sind Mikrometeorite kaum sichtbar für das bloße Auge. Dennoch werden sie seit etwa 150 Jahren gesammelt, und seit wenigen Jahren sogar auf unseren Hausdächern. Als Kostproben von Asteroiden oder Kometen stellen sie wertvolle Boten unseres Sonnensystems dar.
Jenny Feige
wiley +1 more source
Spectral Reflectance Properties (0.3–2.5 μm) of LL Ordinary Chondrites
The Astrophysical Journal Supplement SeriesSpectral characterization of asteroids relies on meteorite spectral calibration to constrain their surface mineralogy. We have conducted a comprehensive spectroscopic study of LL chondrites to shed light on the factors that control their reflectance ...
Pengyue Wang +5 more
doaj +1 more source
Different degrees of aqueous alteration in sulphides within the CI1 chondrites [PDF]
, 2003 Sulphides in four different CI1 chondrites were analysed, to evaluate their composition, texture and morphology. The results reinforce the view that CI1 chondrites could be divided into two subgroups, based on their level of aqueous ...
Bullock, E. S. +3 more
core
Thermal Alteration of Labile Elements in Carbonaceous Chondrites
, 2018 Carbonaceous chondrite meteorites are some of the oldest Solar System planetary materials available for study. The CI group has bulk abundances of elements similar to those of the solar photosphere.
Andronikov, Alexandre +6 more
core +1 more source
Thermal history modeling of the H chondrite parent body [PDF]
, 2012 The cooling histories of individual meteorites can be empirically reconstructed by using ages from different radioisotopic chronometers with distinct closure temperatures.
Akridge +62 more
core +1 more source