VizieR

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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
Target Name (resolved by Sesame) or Position:
 Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  
J/ApJ/696/580
  Properties of weak emission-line QSOs (WLQ) (Shemmer+, 2009)
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2009ApJ...696..580S
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/696/580/wlqs(c)X-ray, optical and radio properties of Weak emission-Line Quasars (WLQs) (tables 1 and 3 of the paper) (11 rows)
2.J/ApJ/696/580/table5(c)X-ray, optical, and radio properties of the BL Lac sample (279 rows)
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Simple ConstraintList Of Constraints
 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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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)
  (1)SDSS (char) SDSS identification (HHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  (1)f_SDSS (char) [hi] Note about the X-ray data (Note G1)   (meta.code)
   (ALL)z  Redshift (src.redshift)
  (1)rOX arcsec (n) Angular distance between the optical and X-ray position (Note 2)   (pos.angDistance)
  (1)f_ObsDate (char) [d] Merged image (Note G1)   (meta.code)
  (1)ObsDate "Y:M:D" (n)Date of observation (time.epoch)
  (1)ObsID  (n) Chandra observation identification number linkRole{Chandra archive log (CXC, 1999-)} (meta.id)
  (1)ExpT ks Chandra exposure time (corrected for detector dead time) (time.duration;obs.exposure)
   (ALL)Ref  (n) Reference number in which the source were first identified as WLQ (Weak emission-Line quasar) or BL Lac candidate (Note 5)   (meta.bib)
   (ALL)SimbadName (char) Designation understandable by the Simbad data-base (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)NH 10+20cm-2Neutral galactic absorption column density from Dickey & Lockman (1990ARA&A..28..215D) (phys)
  (1)AB1450 mag Monochromatic AB magnitude at a rest-frame wavelength of 1450Å (phot.mag;em.UV.100-200nm)
  (1)f_AB1450 (char) [j] Spectrum from Keck (Note G1)   (meta.code)
  (1)BMAG mag Absolute B-band magnitude (phot.mag;em.opt.B)
  (1)F2500 10uJy Flux density at rest-frame 2500Å in units of 10–28erg/cm2/s/Hz (10–5Jy) (phot.flux;em.UV)
  (1)L2500 [10-7W] Log monochromatic luminosity at a rest-frame wavelength of 2500Å (phys.luminosity)
  (1)l_CRate (char) Limit flag on CRate (meta.code.error)
  (1)CRate ct/ks Observed count rate in the 0.5-2keV band (phot.count;em.X-ray)
  (1)E_CRate ct/ks (n) Positive error on CRate (stat.error;stat.max)
  (1)e_CRate ct/ks (n) Negative error on CRate (stat.error)
  (1)f_CRate (char) [k] corrected for exposure map (Note G1)   (meta.code)
  (1)l_Fx (char) Limit flag on Fx (meta.code.error)
  (1)Fx aW/m2 Galactic absorption-corrected flux in the 0.5-2keV band (in 10–15erg/cm2/s) (phot.flux;em.X-ray.soft;pos.galactic)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)E_Fx aW/m2 (n) Positive error on Fx (stat.error;stat.max)
  (1)e_Fx aW/m2 (n) Negative error on Fx (stat.error)
  (1)l_F2keV (char) Limit flag on F2keV (meta.code.error)
  (1)F2keV nJy Flux density at rest-frame 2keV in units of 10–32erg/cm2/s/Hz (10–9Jy) (phot.flux;em.X-ray)
  (1)l_L2keV (char) Limit flag on log2keV (meta.code.error)
  (1)L2keV [10-7W] Log monochromatic luminosity at rest-frame 2keV (log(νLν)) (phys.luminosity)
  (1)l_logL (char) Limit flag on logL (meta.code.error)
  (1)logL [10-7W] Log luminosity in the rest-frame 2-10keV band (phys.luminosity)
  (1)l_aox (char) Limit flag on aox (meta.code.error)
   (ALL)aox  Optical-to-X-ray power-law slope (Note 4)   (spect.index)
  (1)l_Daox (char) Limit flag on Daox (meta.code.error)
  (1)Daox  Difference between measured and predicted αox (Note 5)   (stat.fit.residual)
  (1)l_Sigox (char) Limit flag on Sigox (meta.code.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Sigox  Significance of the difference between measured and predicted αox (Note 6)   (stat.fit.residual)
  (1)l_aro (char) Limit flag on aro (meta.code.error)
   (ALL)aro  Radio-to-optical power-law slope (Note 7)   (spect.index)
  (1)f_aro (char) [l] Radio flux density from NVSS (Note G1)   (meta.code)
  (1)qso7 (char) SDSS-DR7 quasar catalog data (Schneider et al. 2010, Cat. VII/260) (meta.ref.url)
   (ALL)Sloan (char) Display the SDSS data for this object (meta.ref.url)
  (1)_RA deg (i) Positions from SDSS name (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Positions from SDSS name (declination part) (pos.eq.dec;meta.main)
  (2)Name (char) Source name (meta.id;meta.main)
  (2)RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (pos.eq.ra;meta.main)
  (2)DEJ2000 deg (i) Declination in decimal degrees (J2000) (pos.eq.dec;meta.main)
  (2)log2keV [10-7W] Log monochromatic luminosity at 2keV in erg/s (phys.luminosity;em.X-ray.soft)
  (2)f_log2keV   [0/1] 0 = upper limit in log2keV (Note 1)   (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)log5500 [10-7W] Log monochromatic luminosity at 5500Å (phys.luminosity)
  (2)f_log5500   [0/1] 0 = upper limit on log5500 (Note 1)   (meta.code)
  (2)log5GHz [10-7W] Log monochromatic luminosity at 5GHz in erg/s (phys.luminosity;em.radio.3-6GHz)
  (2)f_log5GHz   [0/1] 0 = upper limit on log5GHz (Note 1)   (meta.code)
  (2)f_aox   [0/1] 0 = upper limit on aox (Note 1)   (meta.code)
  (2)f_aro   [0/1] 0 = upper limit on aro (Note 1)   (meta.code)
  (2)P08 (char) BL Lac objects from SDSS and FIRST data (Plotkin et al. 2008, Cat. J/135/AJ/2453) (meta.ref.url)

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