An atomic and molecular database for analysis of submillimetre line observations

By F. Schöier, F. V. D. Tak, E. Dishoeck, J. Black. 2004

1,093 citations recorded by the source corpus.

Atomic and molecular data for the transitions of a number of astrophysically interesting species are summarized, in- cluding 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 ∼ 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 calcu- lations 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.

Subfields: Astronomy and Astrophysics, Atmospheric Science, Spectroscopy

View Paper: https://www.semanticscholar.org/paper/bf9e27a62e100e46c5060c7ea79a0d97ce6c1a79

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Citations in the corpus

Radiation thermo-chemical models of protoplanetary disks I. Hydrostatic disk structure and inner rim (2009, methodology): “The atomic and molecular data for Oi, Ci, Cii and H2O (energy levelsEi, statistical weightsgi, Einstein coefficientsAul, and collision ratesCul are taken from Leiden’s Lambda-database (Schöier et al., 2005), see Table 4.”
Physical Processes in the Interstellar Medium (2014, methodology): “Compilations of excitation rate data are given in Hollenbach & McKee (1989), Glover & Jappsen (2007) and Maio et al. (2007), as well as in the LAMDA database (Schöier et al., 2005).”
THE RELATION BETWEEN GAS AND DUST IN THE TAURUS MOLECULAR CLOUD (2010, methodology): “We use the RADEX program (van der Tak et al. 2007), using the LVG approximation, and the collision cross sections from the Leiden Atomic and Molecular Database (LAMDA; Schöier et al. 2005), to compute line intensi- ties.”
The Relationship between Molecular Gas Tracers and Kennicutt-Schmidt Laws (2007, methodology): “All molecular data are taken from the Leiden Atomic and Molecular Database4 (Schöier et al. 2005).”
ROTATIONAL QUENCHING OF CO DUE TO H2 COLLISIONS (2010, methodology): “The rate coefficients are also available in the format of the Leiden Atomic and Molecular Database (LAMDA, Schöier et al. 2005) on our Web site and the LAMDA site (http://www.strw.leidenuniv.nl/∼moldata/).”
Our astrochemical heritage (2012, background): “…database (BASECOL, Dubernet et al. 2004): http://basecol.obspm.fr/index.php?page=pages/generalPages/home + Leiden Atomic and Molecular Database (LAMDA, Schöier et al. 2005): http://home.strw.leidenuniv.nl/~moldata/ – Chemical reaction databases: + The KInetic Database for Astrochemistry (KIDA,…”
On the relationship between molecular hydrogen and carbon monoxide abundances in molecular clouds (2010, methodology): “We take values for A10 and ν10 from the LAMDA database (Schöier et al. 2005).”
The warm gas atmosphere of the HD 100546 disk seen by Herschel - Evidence of a gas-rich, carbon-poor atmosphere? (2012, methodology): “Molecular data are taken from the LAMDA database (Schöier et al. 2005) and include the collisional excitation with H, H2, and electrons for O, C, and C+, respectively.”
Survival of molecular gas in cavities of transition disks - I. CO (2013, methodology): “Molecular data has been taken from the LAMDA database (Schöier et al. 2005) except for 12CO, where also ro-vibrational levels are accounted for.”