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 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