Results 1 to 10 of about 174 (113)
Glaciations and Dense Interstellar Clouds [PDF]
Nature, 1976 McCREA has revived the idea that the Earth's ice ages may have been caused by the interaction of the Sun with dense interstellar clouds1. In this theory, originally formulated by Hoyle and Lyttleton2, the solar luminosity is temporarily increased by the accretion of gas on to the Sun when the Solar System passes through a dense interstellar cloud.
V N Mansfield
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Hydrogen Chloride in Dense Interstellar Clouds
Astrophysical Journal, 1974 Michael Oppenheimer +2 more
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Presumed Detection of C5 Molecule in the Interstellar Medium
The Astrophysical Journal, 2022 The paper suggests the presence of the carbon chain C _5 molecule in translucent, interstellar H i clouds. This species, the only five atom interstellar molecule, observable in dark, translucent clouds, seems to be observable in reasonably dense clouds ...
J. Krełowski, R. Hakalla, W. Szajna
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Determination of the Branching Ratio of CH3OH + OH Reaction on Water Ice Surface at 10 K
The Astrophysical Journal, 2023 The CH _3 O and CH _2 OH radicals can be important precursors of complex organic molecules (COMs) in interstellar dust. The COMs presumably originating from these radicals were abundantly found in various astronomical objects.
Atsuki Ishibashi +4 more
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Frontiers in Astronomy and Space Sciences, 2021 Stellar systems are often formed through the collapse of dense molecular clouds which, in turn, return copious amounts of atomic and molecular material to the interstellar medium.
Duncan V. Mifsud +6 more
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Elemental nitrogen partitioning in dense interstellar clouds [PDF]
Proceedings of the National Academy of Sciences, 2012 Many chemical models of dense interstellar clouds predict that the majority of gas-phase elemental nitrogen should be present as N 2 , with an abundance approximately five orders of magnitude less than that of hydrogen. As a homonuclear diatomic molecule, N 2
Daranlot, Julien +6 more
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Diffuse interstellar band formation in dense clouds [PDF]
Astrophysics and Space Science, 1974 Measurements of the strengths of the diffuse interstellar bands at 4430, 5780 and 5797 A show that the bands tend to be weak with respect to extinction in dense interstellar clouds. Data on 10 stars in the Q Ophiuchi cloud complex show further that the diffuse band-producing efficiency of the grains decreases systematically with increasing grain size ...
Snow, Theodore P., Jr., Cohen, Judith G.
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Consequences of the Solar System passage through dense interstellar clouds [PDF]
Annales Geophysicae, 2003 Several consequences of the passage of the solar system through dense interstellar molecular clouds are discussed. These clouds, dense (more than 100 cm-3), cold (10–50 K) and extended (larger than 1 pc), are characterized by a gas-to-dust mass ...
A. G. Yeghikyan +2 more
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Turbulence in the interstellar medium [PDF]
Nonlinear Processes in Geophysics, 2014 Turbulence is ubiquitous in the insterstellar medium and plays a major role in several processes such as the formation of dense structures and stars, the stability of molecular clouds, the amplification of magnetic fields, and the re-acceleration and ...
D. Falceta-Gonçalves +3 more
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