808 datasets found

Keywords: atomic physics

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  • Rate coefficients and ion populations

    Extensions have been made recently to the coronal approximation for the purpose of modelling line emission from carbon and oxygen in the lower solar atmosphere. The same...
  • ExoMol molecular line lists. XLIV. SiO

    A new silicon monoxide (^28^Si^16^O) line list covering infrared, visible and ultraviolet regions called SiOUVenIR is presented. This line list extends the infrared EBJT ExoMol...
  • SrV and SrVI transition probabilities

    Missing Stark widths for 37 spectral lines of strontium ions (17 SrV lines and 20 SrVI lines) have been calculated using a quantum-mechanical method. Twenty-three spectral lines...
  • Multiple photoionization for 2p shells in Fe atom

    Multiple photoionization is investigated for the 2p shell in the iron atom. Study of the single photoionization with subsequent radiative and Auger cascade includes all levels...
  • Millimeter-wave spectrum of 2-propanimine

    Up to date, only six imines have been detected in the interstellar medium. The 3-carbon imine, 2-propanimine ((CH_3_)_2_C=NH), is predicted to be the structural isomer with the...
  • Variations of the fine-structure constant

    The Keck telescope's High Resolution Spectrograph (HIRES) has previously provided evidence for a smaller fine-structure constant, {alpha}, compared to the current laboratory...
  • Eu III oscillator strengths

    The calculations of the spectrum and oscillator strengths for the 4f^7^-(4f^6^5d+4f^6^6s) Eu III transitions. The calculations were performed with Cowan's RCN-RCG-RCE codes in...
  • Laboratory studies of HNCO

    Detailed studies of the internal motions of dark clouds using spectral lines of many molecules require a laboratory frequency accuracy of the order of a few m/s. Based on our...
  • Semiempirical gf Values

    This table of gf values for 265,587 atomic lines is selected from the line data used to calculate line-blanketed model atmospheres (Kurucz et al. 1974). The data are especially...
  • High accuracy computed water line list - BT2

    A computed list of H2O infra-red transition frequencies and intensities is presented. The list, BT2 was produced using a discrete variable representation two-step approach for...
  • Linelist of HCN and HNC

    We build an accurate database of 5200 HCN and HNC rotation-vibration energy levels, determined from existing laboratory data. 20000 energy levels in the Harris et al.,...
  • H13CN/HN13C linelist

    A linelist of vibration-rotation transitions for ^13^C substituted HCN is presented. The line list is constructed using known experimental levels where available, calculated...
  • High accuracy line list of HDO

    A computed list of HD^16^O infrared transition frequencies and intensities is presented. The list, VTT, was produced using a discrete variable representation two-step approach...
  • High accuracy computed H2D+ line list - ST1

    A comprehensive, calculated line list of frequencies and transition probabilities for the singly deuterated isotopologue of H_3_^+^, H_2_D^+^, is presented. The line list,...
  • A variationally computed hot NH3 line list - BYTe

    We present 'BYTe' a comprehensive 'hot' line list of ro-vibrational transitions of ammonia, ^14^NH_3_, in its ground electronic state. It comprises 1,138,323,351 transitions...
  • Dielectronic Recombination Lines of C+ - SS1

    A computed list of transition lines for the atomic ion C^+^ is generated using R-matrix [1], Autostructure [2] and Emissivity [3] codes. These lines are produced by dielectronic...
  • Nebular [OIII] collision strengths - SSB

    We present electron collision strengths and their thermally averaged values for the nebular forbidden lines of the astronomically abundant doubly ionized oxygen ion, O^2+^, in...
  • Nebular [OIII] collision strengths - SS3

    The list consists of effective collision strengths in the electron excitation (Upsilon) and de-excitation (Downsilon) with a kappa electron energy distribution as a function of...
  • Collision Strengths for [Co III] Forbidden Lines - SS5

    The list presents electron collision strengths for the forbidden transitions between the fifteen lowest levels of the doubly-ionized cobalt, Co^2+^, as a function of the...
  • K-shell photoabsorption and photoionization

    This is the final report of a three-paper series on the K-shell photoabsorption and photoionization of trace elements (low cosmic abundance), namely F, Na, P, Cl, K, Sc, Ti, V,...
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