Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26as..121..139m&link_type=abstract
A & A Supplement series, Vol. 121, January 1997, 139-185.
Astronomy and Astrophysics
Astronomy
304
Ism: Molecules, Molecular Data, Molecular Processes
Scientific paper
We report the release of a new version of the UMIST database for astrochemistry. The database contains the rate coefficients of 3864 gas-phase reactions important in interstellar and circumstellar chemistry and involves 395 species and 12 elements. The previous (1990) version of this database has been widely used by modellers. In addition to the rate coefficients, we also tabulate permanent electric dipole moments of the neutral species and heats of formation. A numerical model of the chemical evolution of a dark cloud is calculated and important differences to that calculated with the previous database noted. Table 4 also available in electronic form at CDS.
Farquhar R. A. P.
Millar Thomas J.
Willacy Karen
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