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J/MNRAS/357/497     Kinematics of W UMa-type binaries        (Bilir+, 2005)
Kinematics of W Ursae Majoris type binaries and evidence of the two types
of formation.
    Bilir S., Karatas Y., Demircan O., Eker Z.
   <Mon. Not. R. Astron. Soc., 357, 497-517 (2005)>
   =2005MNRAS.357..497B
ADC_Keywords: Binaries, spectroscopic ; Binaries, eclipsing ; Proper motions ;
              Radial velocities ; Space velocities
Keywords: stars: eclipsing, - binaries: spectroscopic - stars: evolution -
          stars: kinematics

Abstract:
    The kinematics of 129 W Ursae Majoris type binaries (W UMas) were
    studied. The sample is heterogeneous with different orbits and
    physically different components from F to K spectral-type
    main-sequence stars. The computed U, V, W space velocities indicate
    that the sample is also heterogeneous in velocity space.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1.dat       116      129   Hipparcos astrometric and radial velocity data
refs.dat         181       69   References
table2.dat       132      129   Kinematics parameters of W UMas
table5.dat        70      129   Physical parameters of W UMas


See also:
          I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)
          V/119 : Catalogue of field contact binary stars (Pribulla+, 2003)
  J/A+A/311/523 : Photometry of W UMa (Maceroni+, 1996)


Byte-by-byte Description of file: table1.dat

   Bytes Format Units     Label   Explanations

   1-  3  I3    ---       Seq     Sequential number
   6- 16  A11   ---       Name    Star name
  18- 23  I6    ---       HD      ? HD (III/135) number
  25- 30  I6    ---       HIP     ? HIP (I/239) number
  32- 33  I2    h         RAh     Right ascension (J2000.0)
  35- 36  I2    min       RAm     Right ascension (J2000.0)
  38- 41  F4.1  s         RAs     Right ascension (J2000.0)
      43  A1    ---       DE-     Declination sign (J2000.0)
  44- 45  I2    deg       DEd     Declination (J2000.0)
  47- 48  I2    arcmin    DEm     Declination (J2000.0)
  50- 53  F4.1  arcsec    DEs     Declination (J2000.0)
  55- 61  F7.2  mas/yr    pmRA    Proper motion in RA (µRA*cosDE)
  63- 66  F4.2  mas/yr    e_pmRA  rms uncertainty on pmRA
  68- 74  F7.2  mas/yr    pmDE    Proper motion in DE (µDE)
  76- 79  F4.2  mas/yr    e_pmDE  rms uncertainty on pmDE
  81- 85  F5.2  mas       plx     Parallax
  88- 91  F4.2  mas       e_plx   rms uncertainty on plx
  93- 98  F6.2  km/s      RV      Radial velocity
 100-104  F5.2  km/s      e_RV    rms uncertainty on RV
     106  I1    ---       r_pm    Reference for proper motion, in refs.dat file
 108-109  I2    ---       r_plx   Reference for parallax, in refs.dat file
 111-116  A6    ---       r_RV    References for Radial velocity, separated by
                                  commas, in refs.dat file


Byte-by-byte Description of file: refs.dat

   Bytes Format Units   Label     Explanations

   1-  2  I2    ---     Ref       Reference number
   5- 23  A19   ---     BibCode   BibCode
  26-181  A156  ---     Aut       Author's name


Byte-by-byte Description of file: table2.dat

   Bytes Format Units   Label     Explanations

   1-  3  I3    ---     Seq       Sequential number
   5- 15  A11   ---     Name      Star name
  17- 22  I6    ---     HD        ? HD (III/135) number
  25- 30  F6.2  deg     GLON      Galactic longitude
  33- 38  F6.2  deg     GLAT      Galactic latitude
  40- 43  I4    pc      X         Distance from Sun towards the Galactic Centre
  45- 48  I4    pc      Y         Distance from Sun towards the Galactic rotation
  50- 53  I4    pc      Z         Distance from Sun towards the Galactic plane
  55- 61  F7.2  km/s    UVel      U space velocity
  63- 67  F5.2  km/s    e_UVel    Uncertainty on U space velocity
  69- 75  F7.2  km/s    VVel      V space velocity
  77- 81  F5.2  km/s    e_VVel    Uncertainty on V space velocity
  83- 89  F7.2  km/s    WVel      W space velocity
  92- 96  F5.2  km/s    e_WVel    Uncertainty on W space velocity
  98-102  A5    ---     Memb      [1,2 ] Possible member of Moving Groups
 104-122  A19   ---     MG        Moving Group Name
 125-132  A8    ---     OC        Physical member of Open Cluster


Byte-by-byte Description of file: table5.dat

   Bytes Format Units     Label   Explanations

   1-  3  I3    ---       Seq     Sequential number
   5- 15  A11   ---       Name    Star name
  17- 21  F5.2  mag       Vmag    Maximum visual magnitude
  23- 26  F4.2  mag       B-V     B-V colour index
  28- 33  A6    ---       SpType  MK Spectral type of the primary component
      35  A1    ---       WType   A/W sub-groups of W UMAs
  37- 42  F6.4  d         Per     Orbital period
  44- 47  F4.1  deg       i       ? Inclination
  49- 53  F5.3  solMass   M1      ? Primary component mass
  55- 59  F5.3  solMass   M2      ? Secondary component mass
  61- 65  F5.3  ---       M2/M1   Spectroscopic mass ratio (m2/m1)
  67- 70  F4.2  ---       FOF     ? Fill-out factor


Acknowledgements: Selcuk Bilir, sbilir(at)istanbul.edu.tr

(End)                      Selcuk Bilir [Istanbul Univ.]             11-Jul-2005