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J/A+AS/142/275      Stellar-activity of late-type stars      (Strassmeier+ 2000)
The Vienna-KPNO search for Doppler-imaging candidate stars
I. A catalog of stellar-activity indicators for 1058 late-type Hipparcos stars
       Strassmeier K. G., Washuettl A., Granzer T., Scheck M., Weber M.
      <Astron. Astrophys. Suppl. Ser. 142, 275 (2000)>
      =2000A&AS..142..275S      (SIMBAD/NED BibCode)
ADC_Keywords: Stars, late-type ; Parallaxes, trigonometric ; Radial velocities ;
              Equivalent widths ; Rotational velocities
Keywords: stars: activity - stars: chromospheres - stars: late-type -
          stars : rotation - surveys

Abstract:
    We present the results from a spectroscopic Ca II H&K survey of 1058
    late-type stars selected from a color-limited subsample of the
    Hipparcos (Cat. I/239) catalog. Out of these 1058 stars, 371 stars
    were found to show significant H&K emission, most of them previously
    unknown; 23% with strong emission, 36% with moderate emission, and 41%
    with weak emission. These spectra are used to determine absolute H&K
    emission-line fluxes, radial velocities, and equivalent widths of the
    luminosity-sensitive Sr II line at 4077Å. Red-wavelength
    spectroscopic and Stroemgren y photometric follow-up observations of
    the 371 stars with H&K emission are used to additionally determine the
    absolute Hα-core flux, the lithium abundance from the Li I
    6708Å equivalent width, the rotational velocity vsini, the radial
    velocity, and the light variations and its periodicity.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
tablea1.dat      181      798   Stars with CaII H&K emission
tablea2.dat      146      766   Stars without emission
tablea3.dat       98      205   Results from photometric survey


Byte-by-byte Description of file: tablea1.dat

   Bytes Format Units    Label     Explanations

   1- 11  A11   ---      Name      HD, HIP or SAO number or variable name
  13- 16  F4.2  mag      Vmag      ? V magnitude
  18- 22  A5    ---      SpType    Spectral type (1)
  24- 27  F4.2  mag      B-V       ? Johnson B-V colour index
  29- 32  I4    K        Teff      ? Effective temperature
  34- 39  F6.2  mas      plx       ? Trigonometric parallax
      40  A1    ---      u_plx     Uncertainty flag on plx
  41- 45  F5.2  mag      VMAG      ? Absolute visual brightness
  47- 49  A3    ---      LC        Luminosity class
      52  I1    km/s     MT        ? Macro turbulence
  54- 57  F4.2  mag      V-R       ? Johnson V-R colour index
  59- 61  F3.1  ---      I(K)      ? [0,5] CaII K emission-line strength
      62  A1    ---      u_I(K)    [?] ?: Unknown value
  64- 75  F12.4 d        HJD       Heliocentric Julian Date
  77- 82  F6.1  km/s     RV        ? Heliocentric radial velocity
      83  A1    ---      f_RV      [c] 'c': combined values for SB systems
  85- 88  F4.1  km/s     e_RV      ? Standard error in RV
  90- 95  F6.1  km/s     Uvel      ? Space velocity towards the galactic center
  97-102  F6.1  km/s     Vvel      ? Space vel. in direction of gal. rotation
 104-108  F5.1  km/s     Wvel      ? Space vel. in direction of gal. north pole
 110-113  F4.2  [mW/m2]  logFK     ? Logarithmic CaII K line flux in erg/cm2/s
 115-118  F4.2  [mW/m2]  logFH     ? Logarithmic CaII H line flux in erg/cm2/s
 120-123  F4.2  [mW/m2]  logF'K    ? Logarithmic pure chromospheric CaII K flux
 125-128  F4.2  [mW/m2]  logF'H    ? Logarithmic pure chromospheric CaII H flux
 130-135  E6.1  ---      R(HK)     ? = (F'H+F'K)/(σ*Teff4)
 137-140  I4    0.1pm    Ha1A      ? 1-Å equivalent width of H-alpha core
     141  A1    ---      f_Ha1A    [c] 'c': combined values for SB systems
 144-147  F4.2  [mW/m2]  lgFHa     ? Log. H-alpha core flux in erg/cm2/s
     148  A1    ---      f_lgFHa   [c] 'c': combined values for SB systems
 150-153  I4    0.1pm    WLi       ? Equivalent width of LiI 6708
     154  A1    ---      f_WLi     [c] 'c': combined values for SB systems
 156-160  F5.2  ---      logNLi    ? Logarithmic LiI 6708 abundance
     161  A1    ---      f_logNLi  [c] 'c': combined values for SB systems
     162  A1    ---      l_vsini   Limit flag on vsini
 163-167  F5.1  km/s     vsini     ? Projected rotational velocity
 170-173  I4    0.1pm    WSr       ? Equivalent width of SrII 4077
     174  A1    ---      f_WSr     [c] 'c': combined values for SB systems
 177-180  F4.2  ---      ISr       ? Residual intensity of SrII 4077
     181  A1    ---      f_ISr     [c] 'c': combined values for SB systems

Note (1): Angles, "< >", denote combined values for components of SB systems.



Byte-by-byte Description of file: tablea2.dat

   Bytes Format Units     Label     Explanations

   1- 11  A11   ---       Name      HD, HIP or SAO number or variable name
  13- 16  F4.2  mag       Vmag      ? V magnitude
  18- 22  A5    ---       SpType    Spectral type (1)
  24- 27  F4.2  mag       B-V       ? Johnson B-V colour index
  29- 32  I4    K         Teff      ? Effective temperature
  34- 39  F6.2  mas       Plx       ? Trigonometric parallax
  41- 45  F5.2  mag       VMAG      ? Absolute visual brightness
  47- 49  A3    ---       LC        Luminosity class
  51- 52  I2    km/s      MT        ? Macro turbulence
  54- 57  F4.2  mag       V-R       ? Johnson V-R colour index
  59- 70  F12.4 d         HJD       Heliocentric Julian Date
  72- 77  F6.1  km/s      HRV       ? Heliocentric radial velocity
  79- 82  F4.1  km/s      e_HRV     ? Standard error in HRV
  84- 89  F6.1  km/s      Uvel      ? Space velocity towards the galactic center
  91- 96  F6.1  km/s      Vvel      ? Space vel. in direction of gal. rotation
  98-102  F5.1  km/s      Wvel      ? Space vel. in direction of gal. north pole
 104-107  F4.2  [mW/m2]   logFK     ? Logarithmic CaII K line flux in erg/cm2/s
 109-112  F4.2  [mW/m2]   logFH     ? Logarithmic CaII H line flux in erg/cm2/s
 114-117  F4.2  [mW/m2]   logFK'    ? Logarithmic pure chromospheric CaII K flux
 119-122  F4.2  [mW/m2]   logFH'    ? Logarithmic pure chromospheric CaII H flux
 124-129  E6.1  ---       R(HK)     ? = (FH'+FK')/(σ*Teff4)
     131  A1    ---       l_vsini   Limit flag on vsini
 132-135  F4.1  km/s      vsini     ? Projected rotational velocity
 137-140  I4    0.1pm     WSr       ? Equivalent width of SrII 4077
 142-145  F4.2  ---       ISr       ? Residual intensity of SrII 4077

Note (1): Angles, "< >", denote combined values for components of SB systems.



Byte-by-byte Description of file: tablea3.dat

   Bytes Format Units  Label    Explanations

       1  A1    ---    f_Var    [*] when Var star found to be variable
   2- 10  A9    ---    Var      Variable star
      12  A1    ---    f_Cmp    [*] when Cmp star found to be variable
  13- 21  A9    ---    Cmp      Comparison star
      23  A1    ---    f_Chk    [*] when Chk star found to be variable
  24- 32  A9    ---    Chk      Check star
  34- 40  I7    d      OBSbeg   HJD of observation begin
  42- 48  I7    d      OBSend   HJD of observation end
  50- 54  F5.3  mag    Ampl     y amplitude
      56  A1    ---    l_Pphot  Limit flag on Pphot
  57- 63  F7.4  d      Pphot    ? Photometric period
  65- 67  I3    ---    Npoints  Number of data points
  69- 97  A29   ---    Notes    Individual notes


Acknowledgements: Michael Scheck 

(End)                                         Patricia Bauer [CDS]   14-Feb-2000