525 datasets found

Keywords: dwarf stars

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  • Vyssotsky's Catalogues 1950.0

    This catalog includes the results of a complete survey of the McCormick objective prism plates for M dwarf stars. catalog.dat includes identifications, magnitudes, proper...
  • Abundances of late G/K dwarfs in solar neighborhood

    In this investigation, a technique developed by Spinrad and Taylor for obtaining metal abundances of late-type stars, and used by them in an earlier investigation of evolved...
  • CaII and MgII excess flux density in cool stars

    The relation between the CaII H and K line-tore flux density and rotation period is studied for a sample of 313 cool stars of luminosity classes ranging from II-III to V, and...
  • Abundances of 9 solar-type stars

    Line identifications, measured equivalent widths and derived chemical abundances in 9 solar-type dwarf stars, which are identified by their Bright Star (HR, (Cat. )) numbers.
  • Optical Spectra of DENIS Brown Dwarf Candidate

    Optical spectra for candidate brown dwarfs from the DENIS Mini-survey are provided. These are the spectra used to in Figure 1 of the paper. Introduction: These data were...
  • PSR J1012+5307 evolutionary tracks

    We present a set of evolutionary tracks for white dwarfs with helium cores in the mass range from 0.179 to 0.414M_{sun}. The tracks are based on a 1M{sun}_ model sequence...
  • Calibration of stellar parameters

    The results of calibration of the surface brightness, bolometric flux and effective temperature scales are presented for 537 dwarfs and giants selected as standards for the...
  • Ages of main-sequence stars

    We have determined the age of a sample of nearby main-sequence stars with spectral types B9-K9. We have derived the stellar ages from five different age estimators: the location...
  • Remnant disks around main-sequence stars IR flux

    We present photometric ISO 60 and 170{mu}m measurements, complemented by some IRAS data at 60{mu}m, of a sample of 84 nearby main-sequence stars of spectral class A, F, G and K...
  • Age-metallicity relation in solar neighbourhood

    We derive stellar ages, from evolutionary tracks, and metallicities, from Stroemgren photometry, for a sample of 5828 dwarf and sub-dwarf stars from the Hipparcos (Cat. )...
  • OI and FeII equivalent widths in metal-poor stars

    The table gives equivalent widths (in m{AA}) of OI and FeII lines for 35 metal-poor main sequence and subgiant stars as measured from high resolution, high S/N spectra observed...
  • Temperature catalog of class IV-V stars

    The catalog contains values of theta [= 5040/T_eff_] for 951 F-K stars which are on or near the main sequence. Values of Cousins R-I are also given for most stars. Cone search...
  • [Fe/H] catalog of class IV-V stars

    This catalog contains mean values of [Fe/H] (with rms errors) for 941 F-K stars which are on or near the main sequence. Literature references are given for the contributing...
  • IZ photometry of Pleiades brown dwarfs

    We present the results of a 6.4 square degrees imaging survey of the Pleiades cluster in the I and Z-bands. The survey extends up to 3{deg} from the cluster center and is 90%...
  • Li abundances and velocities in F and G stars

    Lithium abundances have been determined in 127 F and G Pop I stars based on new measurements of the equivalent width of the {lambda}6707{AA} Li I line from their high resolution...
  • Effective temperature for 181 F-K dwarfs

    Line depth ratios measured on high resolution (R=42000), high S/N echelle spectra are used for the determination of precise effective temperatures of 181 F, G, K main Sequence...
  • RI photometry in alpha Per and Pleiades

    Photographic astrometry (proper motions and accurate positions), photometry (in the photographic R and I passbands) and membership probabilities for high probability proper...
  • 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...
  • Galactic disk stars abundances and velocities

    We have performed the detailed analysis of 174 high-resolution spectra of FGK dwarfs obtained with the ELODIE echelle spectrograph at the Observatoire de Haute-Provence....
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