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J/A+AS/127/251      Giants and supergiants ROSAT data (Huensch+ 1998)
The ROSAT all-sky survey catalogue of optically bright
late-type giants and supergiants
       Huensch M., Schmitt H.H.M.M., Voges W.
      <Astron. Astrophys. Suppl. Ser. 127, 251 (1998)>
      =1998A&AS..127..251H      (SIMBAD/NED BibCode)
ADC_Keywords: Stars, giant ; Stars, supergiant ; X-ray sources

Mission_Name: ROSAT

Keywords: stars: activity - stars: coronae - stars: late-type - X-rays: stars -
          catalogs

Description:
    We present X-ray data for all late-type (A,F,G,K,M) giants and
    supergiants (luminosity classes I to III-IV) listed in the
    Bright Star Catalogue that have been detected in the ROSAT all-sky
    survey. The selection of the sample stars, the data analysis, the
    criteria for an accepted match between star and X-ray source, and the
    determination of X-ray fluxes are described.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table2           109      450   RASS detections of BSC late-type giants


See also:
           IX/11 : ROSAT PSPC Source Catalog (Voges+ 1994)
  J/A+AS/132/155 : Main-sequence and subgiants ROSAT data (Huensch+ 1998)
  J/A+AS/135/319 : Late-type main-sequence stars ROSAT data (Huensch+ 1999)


Byte-by-byte Description of file: table2

   Bytes Format Units       Label    Explanations

   1-  4  I4    ---         HRname   Bright Star (Cat. V/50) number
   6- 11  I6    ---         HD       Henry Draper (Cat. III/135) number
  13- 22  A10   ---         Name     Star's name
  24- 28  F5.2  mag         Vmag     V magnitude
  30- 34  F5.2  mag         B-V      B-V colour index
  36- 53  A18   ---         SpType   MK spectral classification
  55- 59  A5    ---         Binary   Binary Flag (1)
  61- 64  I4    s           ExpTime  Effective exposure time
  66- 71  F6.3  ct/s        Count    Mean PSPC count rate
  73- 77  F5.3  ct/s        e_Count  Error of PSPC count rate
  79- 81  I3    ---         LEx      Likelihood of existence
  83- 84  I2    arcsec      Delta    Offset between optical and X-ray position
  86- 90  F5.2  ---         HR       Hardness Ratio =(H-S)/(H+S)
  92- 95  F4.2  ---         e_HR     Error of Hardness Ratio
  97-103  F7.1  10-17W/m2   FX       Apparent X-ray flux (0.1-2.4 keV)
 105-109  F5.2  ---    log(FX/Fbol)  X-ray to bolometric flux ratio

Note (1):   S: Single
           VB: Visual binary
           SB: Spectroscopic binary
           RS: RS CVn system
            B: Other binary
           CV: Catalclysmic companion
         Symb: Symbiotic star


Acknowledgements: Matthias Huensch 

(End)                                         Patricia Bauer [CDS]   22-May-1997