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C_5_H_2_ Radiatively allowed transitions
Laboratory detection of four isomers of C_5_H_2_ molecule have been reported by Travers et al. (1997ApJ...483L.135T), McCarthy et al. (1997, Science, 275, 518), and Gottlieb et... -
Fe X Benchmarking atomic data
This is the first in a series of papers in which we benchmark recent atomic data available for astrophysical applications. We review various issues related to the completeness... -
SnII Lifetimes and oscillator strengths
Oscillator strengths calculated for 101 lines of Sn II arising from auto-ionized levels are displayed in column three of Table A1, while columns one and two give the transitions... -
Electron impact excitation of Fe XVII
Energies of the lowest 157 levels belonging to the (1s^2^) 2s ^2^2p^6^, 2s ^2^2p ^5^3l, 2s ^2^2p ^5^4l, 2s ^2^2p ^5^5l, 2s2p ^6^3l, 2s2p ^6^4l and 2s2p ^6^5l configurations of... -
Electron impact excitation of NiII
We study the effects of using a 4d{bar} pseudo-orbital on the collision strengths for electron impact excitations of forbidden transitions in Ni II computed in the close... -
Electron impact excitation of Fe XIII
Energy levels and radiative rates for transitions among the lowest 97 fine-structure levels belonging to the (1s^2^2s^2^2p^6^) 3s^2^3p^2^, 3s3p^3^, 3s^2^3p3d , 3p^4^, 3s3p^2^3d... -
Effective collision strengths for Cl II
The B-spline basis has been used in the R-matrix approach to calculate electron impact excitation collision strengths for transitions between the 3s^2^3p^4^ ^3^P_0,1,2_, ^1^D_2_... -
FeXVIII-FeXXIII effective collision strengths
Photoabsorption cross sections across the K edge of Fe XVIII-Fe XXIII and electron impact K-shell excitation effective collision strengths in Fe XVIII-Fe XXIII have been... -
Cd III Stark broadening parameters
Stark broadening parameters, widths and shifts, for 84 spectral lines of doubly-ionized cadmium (Cd III) have been calculated using the modified semi-empirical approach (MSE).... -
Atomic lines in IR spectra for ultracool dwarfs
We provide a set of atomic lines which are suitable for the description of ultracool dwarf spectra from 10000 to 25000{AA}. This atomic linelist was made using both synthetic... -
Transition probabilities for Fe XVIII
Energy levels and the corresponding transition probabilities as well oscillator strengths and line strengths for allowed (E1) and forbidden (E2, M1) transitions among the lowest... -
FeX-FeXVII fine-structure K-vacancy levels
We report extensive calculations of the decay properties of fine-structure K-vacancy levels in Fe X-Fe XVII. A large set of level energies, wavelengths, radiative and Auger... -
Iron Project. LIV. Fe XX
An extensive set of oscillator strengths (f), line strengths (S) and radiative decay rates (A) for dipole allowed, intercombination and forbidden transitions in Fe XX is... -
Spectroscopy of N_2_D^+^ hyperfine structure
The analysis of the fully resolved Nitrogen hyperfine structure of N_2_D^+^ (1-0) observed toward L183, together with laboratory measurements of the same molecular transition,... -
Radiative and Auger decay for Fe II-Fe IX
A detailed analysis of the radiative and Auger de-excitation channels of K-shell vacancy states in Fe II-Fe IX has been carried out. Level energies, wavelengths, A-values, Auger... -
Effective collision strengths in Fe XV
Collision strengths for transitions among the energetically lowest 53 fine-structure levels belonging to the (1s^2^ 2s^2^ 2p^6^) 3l^2^, 3l3l', 3s4l and 3p4s configurations of Fe... -
Iron Project. LIII. Fe XVII
An extensive set of fine structure levels and corresponding transition probabilities for allowed and forbidden transitions in Fe XVII is presented. A total of 490 bound energy... -
Excitation rates for transitions in Ca XV
Collision strengths for transitions among the energetically lowest 46 fine-structure levels belonging to the (1s^2^) 2s^2^2p^2^, 2s2p^3^, 2p^4^, and 2s^2^2p3l configurations of... -
17OH spin-rotation transition frequencies
The frequencies and line strengths of the ^2^{Pi}3/2 J=5/2-3/2 rotational transition of ^17^OH have been calculated from an analysis of its far-infrared laser magnetic resonance... -
Einstein A-coefficients for C3H2 and C2H4O
Cyclopropenylidene C_3_H_2_ and ethylene oxide C_2_H_4_O molecules are of astronomical importance as their observed lines, distributed throughout the observable microwave...
