An atomic and molecular database for analysis of submillimetre line observations
Abstract
Atomic and molecular data for the transitions of a number of astrophysically interesting species are summarized, including energy levels, statistical weights, Einstein Acoefficients and collisional rate coefficients. Available collisional data from quantum chemical calculations and experiments are extrapolated to higher energies (up to E/k ∼ 1000 K). These data, which are made publically available through the WWW at http://www.strw.leidenuniv.nl/~moldata, are essential input for nonLTE 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.
Section 6 and Figs. 35 are only available in electronic form at http://www.edpsciences.org.
Datafiles for the atoms and molecules summarized in Tables 2 and 3 are also available in electronic form at the CDS via anonymous ftp to cdsarc.ustrasbg.fr (130.79.128.5) or via http://cdsweb.ustrasbg.fr/cgibin/qcat?J/A+A/432/369
 Publication:

Astronomy and Astrophysics
 Pub Date:
 March 2005
 DOI:
 10.1051/00046361:20041729
 arXiv:
 arXiv:astroph/0411110
 Bibcode:
 2005A&A...432..369S
 Keywords:

 astronomical data bases: miscellaneous;
 atomic data;
 molecular data;
 radiative transfer;
 ISM: atoms;
 ISM: molecules;
 Astrophysics
 EPrint:
 Accepted for publication in A&