Results 191 to 200 of about 877,168 (238)

High Deuteration of Methanol in L1544. [PDF]

ACS Earth Space Chem
Spezzano S, Riedel W, Caselli P, Sipilä O, Lin Y, Bunn HA, Redaelli E, Coudert LH, Megías A, Jimenez-Serra I.   +9 more
europepmc   +1 more source

Fundamental Role of N-O Bond-Containing Compounds in Prebiotic Synthesis. [PDF]

JACS Au
Sukhorukov AY.
europepmc   +1 more source

Astrochemical Significance of C₂H₇NO Isomers: A Computational Perspective on Their Stability and Detectability. [PDF]

J Phys Chem A
Noriega L, Gonzalez-Ortiz LA, Ortíz-Chi F, Merino G.   +3 more
europepmc   +1 more source

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Interstellar Dust Clouds

Nature, 1971
THE failure, thus far, to detect gaseous emission lines from circumstellar dust clouds1–3 and from Bok globules2 raises the possibility that such clouds consist solely of dust grains. The possibility has previously been largely discounted on the grounds that relative diffusion of the grains and gas is slow and inefficient requiring time scales which ...
openaire   +2 more sources

Interstellar Molecular Clouds

Science, 1986
The interstellar medium in our galaxy contains matter in a variety of states ranging from hot plasma to cold and dusty molecular gas. The molecular phase consists of giant clouds, which are the largest gravitationally bound objects in the galaxy, the primary reservoir of material for the ongoing birth of new stars, and the medium regulating the ...
openaire   +2 more sources

Interstellar Molecules and Dense Clouds

Science, 1971
Current knowledge of the interstellar medium is discussed on the basis of recent published studies. The subjects considered include optical identification of interstellar molecules, radio molecular lines, interstellar clouds, isotopic abundances, formation and disappearance of interstellar molecules, and interstellar probing techniques.
D M, Rank, C H, Townes, W J, Welch
openaire   +2 more sources

Detection of interstellar 1-cyanopyrene: A four-ring polycyclic aromatic hydrocarbon.

Science
Polycyclic aromatic hydrocarbons (PAHs) are organic molecules containing adjacent aromatic rings. Infrared emission bands show that PAHs are abundant in space, but only a few specific PAHs have been detected in the interstellar medium.
Gabi Wenzel, I. Cooke, P. B. Changala, Edwin A. Bergin, Shuo Zhang, A. Burkhardt, Alex N. Byrne, S. Charnley, M. Cordiner, Miya Duffy, Z. T. P. Fried, Harshal Gupta, Martin S. Holdren, A. Lipnicky, R. Loomis, H. Shay, C. Shingledecker, M. Siebert, D. A. Stewart, Reace H. J. Willis, C. Xue, A. Remijan, A. Wendlandt, M. C. McCarthy, B. McGuire   +24 more
semanticscholar   +1 more source

FRACTAL ASPECTS OF INTERSTELLAR CLOUDS

Fractals, 1993
Interstellar matter consisting of gas and dust shows structures which appear to have self-similar projected shapes, similar to the properties of terrestrial clouds. Moreover, the completely different physics in these interstellar clouds reveals several additional self-similar/fractal aspects which are investigated by extensive astronomical ...
Zimmermann, Thomas, Stutzki, Jürgen
openaire   +2 more sources

Masses of interstellar clouds

Astrophysics and Space Science, 1978
Equilibrium masses of slowly rotating interstellar gas clouds have been calculated using an equation of state for the interstellar gas developed by Penston and Brown. The rotation is found to increase the equilibrium masses, but still the cloud masses are not as large as indicated by other considerations.
A. N. Dharmani, V. B. Bhatia
openaire   +1 more source

Molecules in Interstellar Clouds

1981
The physical and chemical state of interstellar clouds is reviewed, including recent investigations at the Onsala Space Observatory. The Orion A region is chosen as an example of a “giant” molecular cloud and hence a formation site for massive stars. The Taurus Molecular Clouds, in contrast, may be the future birthplace of solar-type stars.
Irvine, William M., Hjalmarson, Ake, Rydbeck, Olof   +2 more
openaire   +1 more source