Journal
ASTRONOMY & ASTROPHYSICS
Volume 432, Issue 1, Pages 369-U88Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361:20041729
Keywords
astronomical data bases : miscellaneous; atomic data; molecular data; radiative transfer; ISM : atoms; ISM : molecules
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Atomic and molecular data for the transitions of a number of astrophysically interesting species are summarized, including energy levels, statistical weights, Einstein A-coefficients and collisional rate coefficients. Available collisional data from quantum chemical calculations and experiments are extrapolated to higher energies ( up to E/k similar to 1000 K). These data, which are made publically available through the WWWathttp://www.strw.leidenuniv.nl/similar tomoldata, are essential input for non-LTE line radiative transfer programs. An online version of a computer program for performing statistical equilibrium calculations is also made available as part of the database. Comparisons of calculated emission lines using different sets of collisional rate coefficients are presented. This database should form an important tool in analyzing observations from current and future ( sub) millimetre and infrared telescopes.
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