Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985newsc.106...12m&link_type=abstract
New Scientist (ISSN 0028-6664), vol. 106, April 11, 1985, p. 12-16.
Astronomy and Astrophysics
Astronomy
1
Chemical Reactions, Interstellar Chemistry, Molecular Clouds, Radio Astronomy, Radio Emission, Reaction Kinetics, Abundance, Carbon Monoxide, Deposition, Hydrogen, Hydroxyl Radicals, Shock Waves
Scientific paper
Radio telescopes have revealed the presence of over 60 different types of molecular forms in interstellar space. The measured spectral lines emitted by molecules set spinning by collisions yield data on conditions local to the molecules. The data on the densities and energies of the molecules serve as references for modeling the reactions taking place, thus providing laboratory-like data on a scale more vast than otherwise achievable. The resulting models are tested, where possible, against actual laboratory data. Of particular interest is the equilibrium state of the molecular populations, their ages, and the presence or absence of accreting activities in dust clouds.
Millar Terry
Williams David
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