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J/ApJ/595/1206      ROSAT view of Hipparcos F stars          (Suchkov+, 2003)

ROSAT view of Hipparcos F stars. Suchkov A.A., Makarov V.V., Voges W. <Astrophys. J. 595, 1206 (2003)> =2003ApJ...595.1206S
ADC_Keywords: Stars, F-type ; X-ray sources ; Cross identifications Keywords: binaries: general - stars: activity - stars: evolution - stars: kinematics - stars: pre-main-sequence - X-rays: stars Abstract: For a set of 11900 F stars that have uvby photometry and are in the Hipparcos (Cat. I/239) catalog, we have found 1980 X-ray counterparts (∼17%) in the ROSAT All-Sky Surveys (RASS, Cat. IX/10 and IX/29). In this paper we analyze X-ray properties of these ROSAT F stars and compare that sample with the entire set of our F stars. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 101 1980 HIPPARCOS F stars with ROSAT counterparts table4.dat 40 32 Strong X-Ray Emitters, logLX>29.5, among Metal-poor F Stars, [Fe/H]≤-0.4 table5.dat 157 56 Stars with Extreme X-Ray Luminosity, logLX>30.4
See also: I/239 : The Hipparcos and Tycho Catalogues (ESA 1997) IX/10 : ROSAT All-Sky Bright Source Catalogue (1RXS) (Voges+ 1999) IX/29 : ROSAT All-Sky Survey Faint Source Catalog (Voges+ 2000) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP HIPPARCOS identification number 8- 11 A4 --- --- [RSX-] 12- 27 A16 --- RSX ROSAT All-Sky Surveys identification 29- 33 F5.1 arcsec Offset ROSAT source offset from HIPPARCOS position 35- 39 F5.3 ct/s CRT ROSAT source X-ray count rate 41- 45 F5.3 ct/s e_CRT Error in CRT 47- 51 F5.2 --- HR1 Hardness ratio (G1) 53- 56 F4.2 --- e_HR1 Error in HR1 58- 62 F5.2 [10-7W] logLX Log of the X-ray luminosity in units of erg/s 64- 68 F5.2 mag VMag Absolute V band magnitude (2) 70- 74 F5.2 mag DelMc0 The overluminosity parameter 76- 79 I4 K Teff Effective temperature 81- 85 F5.2 [Sun] [Fe/H] ? Metallicity 87 A1 --- u_[Fe/H] [?] Indicates an unknown [Fe/H] 89- 94 F6.3 mag E(b-y) The Stromgren (b-y) excess 96-100 F5.1 pc Dist Distance
Note (2): Corrected for reddening using E(b-y)
Byte-by-byte Description of file: table4.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP HIP number 8- 12 F5.2 [10-7W] logLX X-ray luminosity 14- 18 F5.2 --- HR1 Hardness ratio (G1) 20- 23 F4.2 mag VMAG Absolute V magnitude 25- 29 F5.2 mag DelMc0 Overluminosity parameter, ΔMc0 31- 34 I4 K Teff Effective temperature 36- 40 F5.2 [Sun] [Fe/H] Metallicity
Byte-by-byte Description of file: table5.dat
Bytes Format Units Label Explanations
1- 6 I6 --- HIP HIP number 8- 16 A9 --- Name Name 18- 33 A16 --- ROSAT ROSAT designation (JHHMMSS.s+DDMMSS) 35- 40 A6 --- Type Type of activity (1) 42- 47 F6.2 pc Dist Distance 49- 54 F6.2 deg RAdeg Right ascension in decimal degrees (J2000) 56- 61 F6.2 deg DEdeg Declination in decimal degrees (J2000) 63- 67 F5.2 [10-7W] logLX X-ray luminosity 69- 73 F5.2 --- HR1 Hardness ratio (G1) 75- 79 F5.2 mag DelMc0 Overluminosity parameter, ΔMc0 81- 85 F5.2 [Sun] [Fe/H] ? Metallicity 86 A1 --- u_[Fe/H] [?] Uncertainty flag on [Fe/H] 88- 92 F5.2 mag VMag Absolute V magnitude 94-157 A64 --- Com Comments
Note (1): Type of activity is abbreviated as follows: RS = RS CVn type stars XO = other types of short-period active binaries XG = active evolved stars without spectroscopic binarity Y = young stars BY = apparently single BY Dratype variable stars WU = WU UMatype binaries ? = question mark (?) for unknown type
Global notes: Note (G1): HR1 = (H-S)/(H+S) where H and S are source counts in the hard (0.5 to 2.0keV) and soft (0.1 to 0.4keV) passbands.
History: From electronic version of the journal
(End) Greg Schwarz [AAS], Patricia Bauer [CDS] 21-Nov-2003
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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