810 datasets found

Keywords: atomic physics

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  • Code for automatic determination of EW (ARES)

    We present a new automatic code (ARES) for determining equivalent widths of the absorption lines present in stellar spectra. We also describe its use for determining fundamental...
  • Thorium and argon lines in the visible

    We present a new list of thorium and argon emission lines in the visible obtained by analyzing high-resolution (R=110000) spectra of a ThAr hollow cathode lamp. The aim of this...
  • Reaction rates of NeNa-MgAl chains in AGB stage

    We test the effect of proton-capture reaction rate uncertainties on the abundances of the Ne, Na, Mg and Al isotopes processed by the NeNa and MgAl chains during hot bottom...
  • Line Frequencies for Uracil

    We report new laboratory spectroscopic data on the nucleic acid uracil. The dataset has been extended both into the microwave and towards mm-wavelengths with the aim to provide...
  • Rest frequencies of sub-mm spectrum of SiN

    The submillimetre-wave spectrum of the SiN radical has been investigated in the laboratory using a source-modulation microwave spectrometer equipped with a negative glow...
  • A-values + oscillator strength of Ca XIII

    Electron impact collision strengths, energy levels, oscillator strengths and spontaneous radiative decay rates are calculated for Ca XIII. The configurations used are 2s2.2p4,...
  • Analysis of inner solar corona in Extreme-UV

    We present a study of the differential emission measure (DEM) of a `quiet Sun' area observed in the extreme ultraviolet at normal incidence by the Coronal Diagnostic...
  • Rest frequencies of methanol maser lines

    We report accurate laboratory measurements of selected methanol transition frequencies between 0.834 and 230GHz in order to facilitate astronomical velocity analyses. New data...
  • 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...
  • 16O18O isotopomer collision rate

    In this paper, a chemical model of interstellar clouds including ^18^O and ^13^C isotopic reactions with a non-LTE calculations of ^16^O^18^O rotational population has been used...
  • C_2_ Phillips and CN Red bands in HD 56126

    We present the detection of molecular absorption lines in the optical spectrum of the post-AGB star HD 56126. The C_2_ Phillips A^1^{PI}u-X^1^{SIGMA}^+^g(1,0), (2,0), and (3,0);...
  • A Multiplet Table for MnI

    The machine-readable version of "A Multiplet Table for MnI" contains data on excitation potentials, J values, multiplet terms, intensities of the transitions, and multiplet...
  • Finding list for multiplet tables of NSRDS-NBS 3

    The primary references for stellar line identifications in the optical and ultraviolet spectral regions have been "A Multiplet Table of Astrophysical Interest" (RMT, Moore 1945)...
  • Line Spectra of the Elements

    This catalog contains wavelength information for 99 different atomic species. The wavelengths for about 46,610 spectral lines of neutral through quadruply ionized atoms are...
  • 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...
  • 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.,...
  • 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...
  • 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...
  • 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...
  • Activity clusters list of lines isolated

    Recent instruments have extended radial velocity observations from the optical domain to the near-infrared range. In particular, this has allowed to study M dwarfs more...
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