Results 31 to 40 of about 2,211 (208)
Unusual Chemical Processes in Interstellar Chemistry: Past and Present
Frontiers in Astronomy and Space Sciences, 2021 The chemistry that occurs in interstellar clouds consists of both gas-phase processes and reactions on the surfaces of dust grains, the latter particularly on and in water-dominated ice mantles in cold clouds.
Eric Herbst, Eric Herbst
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Odessa Astronomical Publications, 2020 Cosmic-ray induced γ-ray emission in active galactic nuclei (AGN) has been examined in this study for the first time. Cross-sections for the formation of γ-quanta in such cosmic-ray collisions were selected in the 1-150 MeV energy range.
D. N. Doikov
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The Astrophysical Journal, 2023 The chemical inventory of protoplanetary midplanes is the basis for forming planetesimals. Among them, solid-state reactions based on CO/CO _2 toward molecular complexity on interstellar dust grains have been studied in theoretical and laboratory work ...
K.-J. Chuang +7 more
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The Astrophysical Journal, 2022 Chemical models and experiments indicate that interstellar dust grains and their ice mantles play an important role in the production of complex organic molecules (COMs).
Miwha Jin +8 more
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Shock processing of interstellar dust - Diamonds in the sky
The Astrophysical Journal, 1987 The processing of interstellar dust grains by strong shock waves is studied, with the emphasis on the effects of grain-grain collisions. Such collisions provide the high pressures required to transform interstellar graphite and amorphous carbon grains into diamonds. Diamond metamorphism is as important for the destruction of such grains as vaporization
A. G. G. M. Tielens +3 more
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A rigorous derivation of Smoluchowski's equation in the moderate limit [PDF]
, 2004 Smoluchowski’s equation is a macroscopic description of a many particle system with coagulation and shattering interactions. We give a microscopic model of the system from which we derive this equation rigorously.
Klingenberg, C. +2 more
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Joint Modelling of Dust Scattering and Thermal Emission: The Spider Complex
The Astrophysical Journal, 2023 Observations across the electromagnetic spectrum of radiative processes involving interstellar dust—emission, absorption, and scattering—are used to constrain the parameters of dust models and more directly to aid in foreground removal of dust for ...
Jielai Zhang +6 more
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Thermal Processing of Interstellar Dust Grains in the Primitive Solar Environment
The Astrophysical Journal, 1997 The heating and vaporization of dust grains in the protosolar environment is modeled in order to assess the survivability of interstellar solids during the formation of the solar system. A multidimensional, discrete ordinate radiative transfer code is used to compute thermal transport in the collapsing protosolar cloud.
Kenneth M. Chick, Patrick Cassen
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Effects of Barnett Magnetic Dipole–Dipole Interaction on Grain Growth and Destruction
The Astrophysical Journal, 2023 Rapidly spinning magnetic grains can acquire large magnetic dipole moments due to the Barnett effect. Here we study the new effect of Barnett magnetic dipole–dipole interaction on grain–grain collisions and grain growth, assuming that grains are spun up ...
Thiem Hoang, Bao Truong
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Looking for the bricks of the life in the interstellar medium: The fascinating world of astrochemistry [PDF]
EPJ Web of Conferences, 2020 The discovery in the interstellar medium of molecules showing a certain degree of complexity, and in particular those with a prebiotic character, has attracted great interest.
Barone Vincenzo, Puzzarini Cristina
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