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Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1987 Some 70 different molecular species have so far been detected variously in diffuse interstellar clouds, dense interstellar clouds and circumstellar shells. Only simple (diatomic and triatomic) species exist in diffuse clouds because of the penetration of destructive ultraviolet radiations, whereas more complex (polyatomic) molecules survive in dense ...
D. Smith, F. L. Whipple, M. K. Wallis
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Journal of Molecular Evolution, 1974
The study of interstellar molecules broadly includes two areas of interest. One area uses the unique ability of molecules to act as probes of the physical conditions in the cold, dense, visually opaque component of the interstellar medium. The physical properties of this and other components of the interstellar medium are summarized.
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The study of interstellar molecules broadly includes two areas of interest. One area uses the unique ability of molecules to act as probes of the physical conditions in the cold, dense, visually opaque component of the interstellar medium. The physical properties of this and other components of the interstellar medium are summarized.
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Astrophysics and Space Science, 1977
We propose that photocycloaddition reactions in molecular complexes in normal interstellar clouds will create unusually large molecules. These may be sufficiently radiation stable to be circulated with the interstellar gas, and so provide convenient nucleation centres for growth of loosely bound grains in dark regions.
Tom J. Millar, D. A. Williams
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We propose that photocycloaddition reactions in molecular complexes in normal interstellar clouds will create unusually large molecules. These may be sufficiently radiation stable to be circulated with the interstellar gas, and so provide convenient nucleation centres for growth of loosely bound grains in dark regions.
Tom J. Millar, D. A. Williams
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Interstellar Molecules and Interstellar Chemistry [PDF]
, 1986 Radio astronomers have to date detected some 60 or so molecules in interstellar space. These molecules have been identified, in the majority of cases, by recording the microwave spectrum received by radio telescope from an interstellar or circumstellar dust cloud and comparing it with the spectra produced in laboratory experiments.
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A list of interstellar molecules [PDF]
Nature, 1980 Interstellar molecules are useful guides to the conditions within interstellar clouds. The list presented here gives information on the sources, abundances and conditions of all interstellar molecules identified up until September 1979.
D. A. Williams, A. P. C. Mann
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Molecules in Interstellar Clouds
1981The 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. +2 more
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The formation of interstellar molecules
Physics Today, 1976The expanding universe is 1010 years old and has a radius of 1010 light years or 1028 cm. Matter in the universe, distributed in a highly non-uniform manner, is concentrated largely in galaxies, which occupy only a minute fraction (10−7) of the volume of the universe. In addition to stars, most galaxies contain diffuse, low density interstellar matter.
William Klemperer, Eric Herbst
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Molecules in Interstellar Space
2008We begin with a history of the field of molecular line astronomy followed by a short account of molecular structure relevant to radio astronomy. (For more details consult the extensive treatments by Kroto or Townes & Schawlow listed in the references).
Susanne Hüttemeister +2 more
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Interstellar molecules and the origin of life
Space Life Sciences, 1971Synopsis of the various views expressed at the conference held at NASA Ames Research Center in February 1971 on the relationship of interstellar molecules to the origin of life, intended to provide a basis for future discussion and work in this area. The topics covered include: a summary of molecules discovered, the interstellar environment, laboratory
Cyril Ponnamperuma, David Buhl
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Theory of interstellar molecules
Symposium - International Astronomical Union, 1967Various estimates are described for the rate of formation of hydrogen molecules on the surface of interstellar grains in H 1 regions. The average abundance of molecular hydrogen relative to atomic hydrogen remains uncertain by a few orders of magnitude.Possibilities are presented for the formation of OH molecules (and, more briefly, for other diatomic ...
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