J/A+AS/135/319 ROSAT data of Nearby Stars (Huensch+ 1999)
The ROSAT all-sky survey catalogue of the nearby stars
Huensch M., Schmitt H.H.M.M., Sterzik M.F., Voges W.
<Astron. Astrophys. Suppl. Ser. 135, 319 (1999)>
=1999A&AS..135..319H 1999A&AS..135..319H (SIMBAD/NED BibCode)
ADC_Keywords: Stars, late-type ; X-ray sources ; Stars, nearby
Mission_Name: ROSAT
Keywords: stars: activity - stars: coronae - stars: late-type - X-rays: stars
Description:
We present X-ray data for all entries of the Third Catalogue of Nearby
Stars (Gliese and Jahreiss, 1991, Cat. V/70) that have been
detected as X-ray sources in the ROSAT all-sky survey. The catalogue
contains 1252 entries yielding an average detection rate of 32.9
percent. In addition to count rates, source detection parameters,
hardness ratios, and X-ray fluxes we also list X-ray luminosities
derived from Hipparcos parallaxes.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table2.dat 100 1252 RASS detections of the Gliese stars
--------------------------------------------------------------------------------
See also:
V/70 : Nearby Stars, Preliminary 3rd Version (Gliese+ 1991)
IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1996)
J/A+AS/127/251 : Giants and supergiants ROSAT data (Huensch+ 1998)
J/A+AS/132/155 : Main-sequence and subgiants ROSAT data (Huensch+ 1998)
Byte-by-byte Description of file: table2.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 17 A17 --- Name Gliese catalogue or other designation
19- 23 F5.2 mag Vmag V magnitude
25- 29 F5.2 mag B-V ? B-V colour index
31- 42 A12 --- SpType Spectral classification
43- 47 F5.1 pc Dist ? Hipparcos distance
49- 52 I4 s ExpTime Exposure time
54- 59 F6.3 ct/s CtRate Mean PSPC count rate
61- 65 F5.3 ct/s e_CtRate Error of PSPC count rate
67- 69 I3 --- LH Likelihood of existence
71- 72 I2 arcsec DO-X Offset between optical and X-ray position
74- 78 F5.2 --- HR ? Hardness Ratio = (H-S)/(H+S)
79 A1 --- u_HR Uncertainty flag on HR
80- 83 F4.2 --- e_HR ? Error of Hardness Ratio
85- 91 F7.1 10-14mW/m2 FXray Apparent X-ray flux (0.1-2.4 keV)
92 A1 --- u_FXray Uncertainty flag on FXray
93- 99 F7.1 10+20W LXray ? X-ray luminosity
100 A1 --- u_LXray Uncertainty flag on LXray
--------------------------------------------------------------------------------
Acknowledgements: Matthias Huensch
(End) Patricia Bauer [CDS] 23-Nov-1998