An atomic and molecular database for analysis of submillimetre line observations
Artikel i vetenskaplig tidskrift, 2005

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 $E/k \sim 1000$ K). These data, which are made publically available through the WWW at http://www.strw.leidenuniv.nl/~moldata, 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.

atomic data

astronomical data bases

molecular data

interstellar matter

radiative transfer

Författare

Fredrik Schöier

Chalmers, Institutionen för radio- och rymdvetenskap, Nationella anläggningen för radioastronomi

Floris F. S. van der Tak

E. F. van Dishoeck

John H Black

Chalmers, Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik

Astronomy and Astrophysics

0004-6361 (ISSN) 1432-0746 (eISSN)

Vol. 432 369-379

Ämneskategorier

Astronomi, astrofysik och kosmologi

Atom- och molekylfysik och optik

DOI

10.1051/0004-6361