VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

  
J/A+AS/128/29
  X-ray/optical observations of A8-G2V stars (Piters+ 1998)
ReadMe+ftp
1998A&AS..128...29P
Similar Catalogs
Post annotation 		  
1.J/A+AS/128/29/table1Sample stars (173 rows)
2.J/A+AS/128/29/table2Walraven photometry data (169 rows)
3.J/A+AS/128/29/table5ROSAT X-ray data (162 rows)

Simple ConstraintList Of Constraints
 
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Column  Constraint Explain   (UCD)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
   (ALL)HR  (i) HR (Cat. V/50) number (meta.id;meta.main)
   (ALL)HR_data (char) Link to all parameters and notes from the Bright Star Catalogue (stat.error)
   (ALL)Note (char) [AB] See Note (Note 1)   (meta.note)
  (1)Type (char) Spectral Type (Note 2)   (src.spType)
  (1)Vmag mag Apparent visual Johnson V magnitude (Note 2)   (phot.mag;em.opt.V)
  (1)B-V mag Johnson's B-V colour (Note 2)   (phot.color;em.opt.B;em.opt.V)
  (2)VWmag mag visual (Walraven) magnitude V (phot.mag;em.opt.V)
  (2)e_VWmag mag standard deviation in VWmag (stat.error)
  (2)V-B mag Walraven colour V-B (phot.color)
  (2)e_V-B mag Standard deviation in V-B (stat.error)

ALL cols		    
 (i)indexed column
  (2)B-U mag Walraven colour B-U (phot.color)
  (2)e_B-U mag Standard deviation in B-U (stat.error)
  (2)U-W mag Walraven colour U-W (phot.color)
  (2)e_U-W mag Standard deviation in U-W (stat.error)
  (2)B-L mag Walraven colour B-L (phot.color)
  (2)e_B-L mag Standard deviation in B-L (stat.error)
  (2)o_B-L  Number of observations (meta.number)
  (2)Teff K Effective temperature (phys.temperature.effective)
  (2)e_Teff K (n) Uncertainty in Teff (Note 2)   (stat.error)
  (2)logg [cm/s2] Logarithm of surface gravity (phys.gravity)
  (2)e_logg [cm/s2] (n) Uncertainty in logg (Note 2)   (stat.error)
  (2)E(V-B) mag The reddening E(V-B) (phot.color.excess)
  (2)e_E(V-B) mag (n) Uncertainty in E_V-B (Note 2)   (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)Count s-1 X-ray count rate (phot.count;em.X-ray)
  (3)E_Count s-1 (n) Positive uncertainty in Count (stat.error)
  (3)e_Count s-1 (n) Negative uncertainty in Count (stat.error)
  (3)XHR  (n) Hardness ratio (phot.flux;arith.ratio)
  (3)E_XHR  (n) Positive uncertainty in XHR (stat.error)
  (3)e_XHR  (n) Negative uncertainty in XHR (stat.error)
  (3)logCx [10+7cm2/J]Log of energy-conversion factor (Note 2)   (instr.param)
  (3)E_logCx [10+7cm2/J](n) Positive uncertainty in logCx (stat.error)
  (3)e_logCx [10+7cm2/J](n) Negative uncertainty in logCx (stat.error)
  (3)lognH [cm-2] Logarithm of hydrogen column density (phys.columnDensity)
  (3)e_lognH [cm-2] Uncertainty in lognH (stat.error)
  (3)logRx  Log of Normalized X-ray flux density (Note 3)   (phot.flux;arith.ratio)
  (3)E_logRx  (n) Positive uncertainty in logRx (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)e_logRx  (n) Negative uncertainty in logRx (stat.error)
  (3)logFx  Log of X-ray surface flux density (Note 3)   (phot.flux;em.X-ray)
  (3)E_logFx  (n) Positive uncertainty in logFx (stat.error)
  (3)e_logFx  (n) Negative uncertainty in logFx (stat.error)
  (3)logLx  Logarithmic X-ray luminosity (Note 3)   (phys.luminosity;em.X-ray)
  (3)E_logLx  (n) Positive uncertainty in logLx (stat.error)
  (3)e_logLx  (n) Negative uncertainty in logLx (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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