Results 81 to 90 of about 2,211 (208)
Sampling the volcanic plumes at Io: Impact speeds and shock conditions
Abstract The desire to sample material from the interior of Io, by flying through its volcanic plumes, requires consideration of the flyby speed and the types of sample collection techniques that can be utilized. Low speed collection (1–2.5 km s−1) would require an orbit around Io itself, which is unlikely due to the accumulated radiation dose that ...
M. J. Burchell +2 more
wiley +1 more source
This thesis deals with the analysis of “presolar” silicates and oxides by high resolution mass spectrometry and electron microscopy techniques. This “stardust” was identified by its extreme oxygen isotopic anomalies, which point to nucleosynthetic ...
Vollmer, Christian
core
Interstellar dust plays a key role in many astrophysical processes. However, until recently, astronomers could infer some properties of interstellar dust only through observations of starlight extinction and infrared emission.
Altobelli, Nicolas, Altobelli, N.
core +1 more source
METAL-Z: Measuring Dust Depletion in Low-metallicity Dwarf Galaxies
The cycling of metals between interstellar gas and dust is a critical aspect of the baryon cycle of galaxies, yet our understanding of this process is limited. This study focuses on understanding dust depletion effects in the low-metallicity regime (
Aleksandra Hamanowicz +8 more
doaj +1 more source
Kinetics and Thermodynamics of Tautomerization Reactions of 1,1‐ and 1,2‐Ethenediols
ABSTRACT Tautomerism is a common phenomenon amongst organic molecules with easily interconvertible isomers, which can impact drug action and toxicity. Here we are interested in the enols of carboxylic acids, which are known to be much less stable than their acid counterparts.
Judith Würmel, John M. Simmie
wiley +1 more source
Stochastic histories of dust grains in the interstellar medium
The purpose is to study an evolving system of refractory dust grains within the Interstellar Medium (ISM). This is done via a combination of Monte Carlo processes and a system of partial differential equations, where refractory dust grains formed within ...
Clayton, D. D., Liffman, Kurt
core
Six Phases of Cosmic Chemistry [PDF]
The article presents a conceptually unified, quantitative account of the development of chemical phenomena throughout the cosmic history, with a detailed discussion of the cosmological, astrophysical, geological, biological and anthropological context ...
Lamza, Lukasz
core
Satellites and Small Bodies With ALMA: Insights Into Solar System Formation and Evolution
Abstract Our understanding of the formation and evolution of planetary systems has made major advances in the past decade. This progress has been driven in large part by the Atacama Large Millimeter/submillimeter Array (ALMA), which has given us an unprecedented view of solar system bodies themselves, and of the structure and chemistry of forming ...
Katherine de Kleer +3 more
wiley +1 more source
The study of the formation and the destruction processes of cosmic dust is essential to understand and to quantify the budget of extraterrestrial organic materials.
Salama, Farid
core
Carbonaceous grains, as an abundant interstellar dust material, persist through several stages of the interstellar medium, providing a surface for gas-phase species condensation and chemical reactions.
C.-Y. Lee +5 more
doaj +1 more source

