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An atomic and molecular database for analysis of submillimetre line observations

Fredrik L. Schöier (Institutionen för radio- och rymdvetenskap, Nationella anläggningen för radioastronomi) ; Floris F. S. van der Tak ; Ewine F. van Dishoeck ; John H. Black (Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik)
Astronomy and Astrophysics (0004-6361). Vol. 432 (2005), p. 369-379.
[Artikel, refereegranskad vetenskaplig]

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.

Nyckelord: astronomical data bases, atomic data, molecular data, radiative transfer, interstellar matter


DOI: 10.1051/0004-6361:20041729 There is additional material that appears in the on-line version of the publication only. Note that this article describes a database. The database itself is located at http://www.strw.leidenuniv.nl/~moldata



Denna post skapades 2007-01-03. Senast ändrad 2014-09-02.
CPL Pubid: 24131

 

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Institutioner (Chalmers)

Institutionen för radio- och rymdvetenskap, Nationella anläggningen för radioastronomi (2005-2010)
Institutionen för radio- och rymdvetenskap, Radioastronomi och astrofysik (2005-2010)

Ämnesområden

Atom- och molekylfysik och optik
Astronomi, astrofysik och kosmologi

Chalmers infrastruktur