VizieR

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

  
J/ApJ/746/54
  Chandra X-ray observations of SDSS-DR5 QSOs (Gibson+, 2012)
ReadMe+ftp
2012ApJ...746...54G
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Post annotation 		img(gal)
1.J/ApJ/746/54/XobsX-ray observations of each source: count rates, total counts, counts in each band (tables 2 and 3) (763 rows)

Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
ShowSortColumn  Constraint Explain   (UCD)
  recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  SDSS (char) SDSS Name (HHMMSS.ss+DDMMSS.s; J2000) (meta.id;meta.main)
  ObsId   [304/9880] Observation number (meta.id;obs)
  Exp s [161/170433] Exposure time (time.duration;obs.exposure)
  OA arcmin [0.08/14.88] Off-Axis Angle (instr.offset)
  HQ?   [0/1] In HQ sample flag (1=yes) (Note G1)   (meta.code)
  TSTART s Chandra TSTART parameter (Note 1)   (time.epoch)
  CRate 0.01/m2/s [-5/1600] Source count rate (in units of 10–6ct/cm2/s) (phot.count;em.X-ray)
  E_CRate 0.01/m2/sUpper limit uncertainty on CRate (stat.error;stat.max)
  e_CRate 0.01/m2/sLower limit uncertainty on CRate (stat.error)
  CtLum 10+52ct/s [-237/3533] Count luminosity (phys.luminosity;em.X-ray)

ALL cols		    
 (i)indexed column
  E_CtLum 10+52ct/sUpper limit uncertainty on CtLum (stat.error;stat.max)
  e_CtLum 10+52ct/sLower limit uncertainty on CtLum (stat.error)
  Full ct [0/33089] Full (0.5-8 keV) band total counts (Note 2)   (phot.count;em.X-ray)
  E_Full ct Upper limit uncertainty on Full (stat.error;stat.max)
  e_Full ct Lower limit uncertainty on Full (stat.error)
  Soft ct [0/24936] Soft (0.5-2 keV) band total counts (phot.count;em.X-ray)
  E_Soft ct Upper limit uncertainty on Soft (stat.error;stat.max)
  e_Soft ct Lower limit uncertainty on Soft (stat.error)
  Hard ct [0/8337] Hard (2-8 keV) band total counts (phot.count;em.X-ray)
  E_Hard ct Upper limit uncertainty on Hard (stat.error;stat.max)
  e_Hard ct Lower limit uncertainty on Hard (stat.error)
  SFcts ct [-6.3/33089] Source full (0.5-8keV) band counts (Note 1)   (phot.count;em.X-ray)
  E_SFcts ct Upper limit uncertainty in SFcts (stat.error;stat.max)

ALL cols		    
 (i)indexed column
  e_SFcts ct Lower limit uncertainty on SFcts (stat.error)
  SScts ct [-3.7/24936] Source soft (0.5-2 keV) band counts (phot.count;em.X-ray)
  E_SScts ct Upper limit uncertainty on SScts (stat.error;stat.max)
  e_SScts ct Lower limit uncertainty on SFcts (stat.error)
  SHcts ct [-8.6/8337] Source hard (2-8 keV) band counts (phot.count;em.X-ray)
  E_SHcts ct Upper limit uncertainty on SHcts (stat.error;stat.max)
  e_SHcts ct Lower limit uncertainty on SHcts (stat.error)
  bgFcts ct [-0.4/428] Background full (0.5-8 keV) band counts (Note 1)   (instr.background)
  E_bgFcts ct Upper limit uncertainty in bgFcts (stat.error;stat.max)
  e_bgFcts ct Lower limit uncertainty in bgFcts (stat.error)
  bgScts ct [-0.4/75] Background soft (0.5-2 keV) band counts (Note 1)   (instr.background;em.X-ray.soft)
  E_bgScts ct Upper limit uncertainty in bgScts (stat.error;stat.max)
  e_bgScts ct Lower limit uncertainty in bgScts (stat.error)

ALL cols		    
 (i)indexed column
  bgHcts ct [-0.3/356] Background hard (2-8 keV) band counts (Note 1)   (instr.background;em.X-ray.hard)
  E_bgHcts ct Upper limit uncertainty in bgHcts (stat.error;stat.max)
  e_bgHcts ct Lower limit uncertainty in bgHcts (stat.error)
  HR  (n) [-1/1] Hardness ratio (Note 2)   (phot.flux;arith.ratio)
  E_HR  (n) Upper limit uncertainty on HR (stat.error;stat.max)
  e_HR  (n) Lower limit uncertainty on HR (stat.error)
  Lum 10+35W [-3900/58166] Approximate 0.5-8keV luminosity (Note 3)   (phys.luminosity;em.X-ray)
  E_Lum 10+35W Upper limit uncertainty in Lum (stat.error;stat.max)
  e_Lum 10+35W Lower limit uncertainty in Lum (stat.error)

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