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Deuterated and ^15^N ethyl cyanides
Ethyl cyanide is an abundant molecule in hot molecular clouds. Its rotational spectrum is very dense and several hundreds of rotational transitions within the ground state have... -
Rest frequencies for C3O
The submillimetre-wave spectrum of C3O (X^1^{Sigma}^+^) has been investigated in the laboratory using a source-modulation microwave spectrometer equipped with a gas-phase flow... -
Collisional excitation of water in warm media
The interpretation of water line emission from infrared and submillimetre observations requires a detailed knowledge of collisional rate coefficients over a wide range of levels... -
OVII radiative and excitation rates
In this paper we report calculations for energy levels, radiative rates, and electron impact excitation rates for transitions in OVII. The GRASP (general-purpose relativistic... -
Atomic Data from the Iron Project LXVI. Fe^18+^
Accurate electron collisional data are required for the analysis of the Fe XIX astrophysical spectrum, in particular in the Sun. Such an analysis can provide information on the... -
NiXIX effective collision strengths
In this paper we report electron impact collision strengths and excitation rates for transitions among the lowest 89 levels of NiXIX. The Dirac atomic R-matrix code (DARC) is... -
Ni XXV energy levels and radiative rates
We report calculations of energy levels and radiative rates for 1300 fine-structure levels generated from 189 configurations of Be-like Nickel. The General Purpose Relativistic... -
Improved predictions of nuclear reaction rates
Nuclear reaction rates of astrophysical applications are traditionally determined on the basis of Hauser-Feshbach reaction codes. These codes adopt a number of approximations... -
Ar XVIII radiative and excitation rates
In this paper we report on calculations for energy levels, radiative rates, collision strengths, and effective collision strengths for transitions among the lowest 25 levels of... -
Effective collision strengths for C II
Oscillator strengths and electron impact excitation collision strengths for CII lines among the fine-structure levels are calculated. Thermally averaged collision strengths are... -
O IV radiative and excitation rates
In this paper we report calculations for energy levels, radiative rates, and excitation rates for transitions in O IV. The GRASP (general-purpose relativistic atomic structure... -
Fe XXVI radiative and excitation rates
In this paper we report on calculations for energy levels, radiative rates, collision strengths, and effective collision strengths for transitions among the lowest 25 levels of... -
Extended analysis of the Eu III spectrum
We create an Eu III new atomic data set for interpreting the spectra of chemically peculiar stars by an extended analysis of the doubly-ionized europium. We classified Eu III... -
Fine structure forbidden lines in FeII
Absorption or emission lines of Fe II are observed in many astrophysical spectra and accurate atomic data are required to interpret these lines. The calculation of... -
NiXI radiative and excitation rates
In this paper we report calculations for energy levels, radiative rates and excitation rates for transitions in NiXI. The GRASP (General-purpose Relativistic Atomic Structure... -
Energy levels and radiative rates in Co XI
In this paper we report calculations for energy levels and radiative rates for transitions in Co XI. The General purpose Relativistic Atomic Structure Package GRASP and the... -
(De)excitation rates of H2O by H2
The interpretation of water line emission from existing observations and future HIFI/Herschel data requires a detailed knowledge of collisional rate coefficients. Among all... -
IRON project LXIV
This work reports radiative transition rates and electron impact excitation rate coefficients for levels of the n=3, 4, 5, 6, 7, 8 configurations of CaII. The radiative data... -
Ionization rate coefficients for elements H to Zn
The interpretation of astrophysical spectra depends directly on a knowledge of the ionization state of the emitting plasma. This is determined, in part, from collisional... -
Electron-impact excitation of Fe^19+^
We present results for the electron-impact excitation of N-like Fe as part of the RmaX network. R-matrix theory using an intermediate-coupling frame transformation method is...
