1,515 datasets found

Keywords: Chemical abundances

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  • Horizontal branch stars in 47 Tuc and M5

    To check the impact of the multiple population scenario for globular clusters on their horizontal branch (HB), we present an analysis of the composition of 110 red HB (RHB)...
  • Abundances of microlensed bulge dwarf stars. V.

    We perform a detailed elemental abundance analysis of dwarf stars in the Galactic bulge, based on high-resolution spectra that were obtained while the stars were optically...
  • Metal abundances of sdB stars

    Hot subdwarf B stars (sdBs) are considered to be core helium-burning stars with very thin hydrogen envelopes situated on or near the extreme horizontal branch (EHB). The...
  • Abundances of 94 stars

    Abundances of Mn, Cu, Zn, Y, and Ba are determined for a sample of stars previously studied by Nissen & Schuster (2010, Cat. J/A+A/511/L10). Equivalent widths of atomic...
  • HERES VI. Galactic chemical evolution of Si and C

    To obtain detailed silicon abundances of metal-poor stars, we aim to explore the correlation between the abundance ratios and the stellar parameters and the chemical enrichment...
  • Abundances and space velocities of 94 stars

    Precise abundance ratios are determined for 94 dwarf stars with 5200<Teff<6300K, -1.6<[Fe/H]<-0.4, and distances D<~335pc. Most of them have halo kinematics, but...
  • ^12^C^18^O(3-2) map of rho Oph A

    The large submillimetre map of rho Oph A in the ^12^C^18^O(3-2) line, obtained with the APEX 12m telescope, covers 10' in RA by 5' in DE, sampled on a rectangular grid, aligned...
  • NaI and CaII interstellar absorption

    We present new high resolution (R>50000) absorption measurements of the NaI doublet (5889-5895{AA}) along 482 nearby sight-lines, in addition to 807 new measurements of the...
  • VLT-FLAMES survey of massive stars

    We present an analysis of high-resolution FLAMES spectra of approximately 50 early B-type stars in three young clusters at different metallicities, NGC 6611 in the Galaxy, N 11...
  • Oxygen abundances in the Galactic disk

    Oxygen abundances for the 72 program stars. Column one gives the Hipparcos number, columns 2-6 the derived oxygen abundances for the different indicators relative to the...
  • Abundances of field BHB star candidates

    New spectroscopic observations are presented for a sample of thirty-one blue horizontal branch (BHB) star candidates that are sufficiently nearby to have reliable proper...
  • NaI in Local Bubble

    We present preliminary results form a long-term program of mapping the neutral absorption characteristics of the local interstellar medium, taking advantage of Hipparcos stellar...
  • Chemical composition of six K supergiants in the SMC

    A sample of six SMC cool stars (K supergiants) are analysed by high resolution spectroscopy in order to investigate their chemical content, which should reflect that of the...
  • Fe I in metal-poor stars

    A detailed analysis of neutral iron lines in a sample of 13 metal-poor dwarfs and subgiants is carried out on the basis of high resolution spectra obtained with the ESO Coude...
  • The spectrum of FG Sge in 1992

    Wavelength measurements and line identifications from the 0.14A/pixel echelle spectra of FG Sge secured two weeks before the drastic dimming of the star in 1992 are presented....
  • Catalogue of [Fe/H] of F, G, K stars

    The catalogue presented here is a compilation of published atmospheric parameters (Teff, logg, [Fe/H]) obtained from high resolution, high signal-to-noise spectroscopic...
  • Catalogue of [Fe/H]

    The catalogue includes [Fe/H] determinations and atmospheric parameters (Teff, logg ) obtained from high resolution spectroscopic observations and detailed analyses, most of...
  • Chemical Abundances in Late-Type Stars

    The catalogue includes chemical abundances determinations (from Li to Eu) and atmospheric parameters (Teff, logg, microturbulent velocity) obtained from re-analyses of 1108...
  • The PASTEL catalogue

    PASTEL is a bibliographical catalogue compiling determinations of stellar atmospheric parameters. It provides (Teff, logg, [Fe/H]) determinations obtained from detailed analyses...
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