Results 121 to 130 of about 2,128 (220)

GRAIN MANTLE COMPOSITION IN INTERSTELLAR CLOUDS: PROSPECTS FOR INFRARED SPECTROSCOPY

, 1992
1. T.I. Hasegawa, E. Herbst, and C.M. Leung, Astrophys. J. Suppl., in press.Author Institution: Department of Physics, The Ohio State UniversityIn the last decade, IR observations of dense interstellar clouds have been used to detect both gas phase ...
Hasegawa, T. I., Herbst, E.
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Dust emission and extinction in the Orion OMC-3 cloud

Astronomy & Astrophysics
Context. Dust is an important tracer of the structure of interstellar clouds, as well as a central factor in the thermal balance and chemistry of the clouds.
Juvela Mika, Ysard Nathalie
doaj   +1 more source

Revealing that the Gas-phase Reaction of CN with H2S Can Be a Source of HSCN in Interstellar Molecular Clouds

The Astrophysical Journal
Sulfur-bearing molecules are key constituents of the interstellar medium (ISM). Particularly, hydrogen sulfide (H _2 S) and cyano (CN) radicals are key precursors of prebiotic molecules in the ISM.
María Antiñolo, Francisco Martínez, Daniel González, Anxo Lema-Saavedra, Emilio Martínez-Núñez, Antonio Fernández-Ramos, Marcelino Agúndez, José Cernicharo, Elena Jiménez   +8 more
doaj   +1 more source

Carbon Chemistry in Dense Molecular Clouds: Theory and Observational Constraints [PDF]

, 1990
For the most part, gas phase models of the chemistry of dense molecular clouds predict the abundances of simple species rather well. However, for larger molecules and even for small systems rich in carbon these models often fail spectacularly.
Blake, Geoffrey A.
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THE EFFECT OF RAPID NEUTRAL-NEUTRAL REACTIONS ON CHEMICAL-MODELS OF DENSE INTERSTELLAR CLOUDS

, 1994
Recent experiments on rapid neutral-neutral reactions involving the radical CN at low temperature and the neutral C atom at room temperature suggest that atom-neutral and radical-neutral reactions may be generally more rapid at low temperature than ...
Lee, H.H., Howe, D.A., Millar, TJ, Herbst, E.   +3 more
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The chemistry of transient dense cores in interstellar clouds. [PDF]

, 2005
I model the chemical effects on dark clouds of their being composed of small (
Garrod, R.T.
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Grain Growth and Silicates in Dense Clouds

, 2006
Interstellar silicates are likely to be a part of all grains responsible for visual extinction (Av) in the diffuse interstellar medium (ISM) and dense clouds.
Werner, M., Roellig, T., Tielens, A., Chiar, J. E., Lada, C., Ennico, K., Whittet, D., Boogert, A., Greene, T., Knez, C., Pendeleton, Yvonne J.   +10 more
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Glaciations and dense interstellar clouds (reply) [PDF]

Nature, 1976
openaire   +1 more source

Chemistry of the interstellar medium : from diffuse to dense

, 2016
L’évolution chimique des phases les plus diffuses aux plus denses du milieu interstellaireest un processus continu : la composition chimique du milieu interstellairedans une phase dépend de sa composition dans sa phase antérieure.Les études, qui s ...
Ruaud, Maxime
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Numerical studies of collapsing interstellar clouds

, 1987
Numerical simulation of the structure and evolution of interstellar clouds was conducted. Steps were taken toward an integrated treatment of the dynamical, thermal, and chemical processes entering model calculations, and a detailed study was made of ...
Bodenheimer, Peter, Black, David C., Villere, Karen R.   +2 more
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