VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN 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/AJ/162/72
  Random forests method to discover high-redshift QSOs (Wenzl+, 2021)
ReadMe+ftp
2021AJ....162...72W
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/162/72/table7(c)List of quasar candidates that are part of the high-z candidates selection and information about their observation status (515 rows)
2.J/AJ/162/72/table9(c)List of newly discovered quasars in this work (20 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)Index   [0/514] Sequential running index (meta.code)
   (ALL)WISE (char) Name in ALLWISE catalog (meta.id;meta.main)
   (ALL)RAJ2000 deg (i) [0/360] Pan-STARRS Right Ascension, (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 deg (i) [-30/86] Pan-STARRS Declination (J2000) (pos.eq.dec;meta.main)
  (1)zPSF mag [18.3/20.5] z stacked PSF mag in Pan-STARRS (meta.code)
  (1)Pz   [0.4/1] Probability for high-z class (meta.code;stat.probability)
  (1)PQSO   [0.4/1] Summed probability for quasar classes (meta.code;stat.probability)
  (1)PMstar (char) Probability for M star class (meta.code;stat.probability)
  (1)zPredicted   [4.8/6.2] High redshift regression result (meta.code)
  (1)zspec  (n) [4.7/6.3] Redshift determined from spectrum (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Known?  Boolean whether quasar is known in literature (meta.code)
  (1)Photo?  Boolean whether we obtained photometric follow-up (meta.code;stat.probability)
  (1)Obs?  Boolean whether we took a spectrum of the object (meta.code)
  (1)Still?  Boolean whether object still has to be observed (meta.code)
  (2)zMag mag [17.8/20.4] z stacked PSF magnitude in Pan-STARRS, extinction corrected (phot.mag)
  (2)M1450 mag [-28.3/-25.7] M1450 based on PS photometry (phot.mag)
  (2)Inst (char) Telescope and Instrument used for observation (instr.setup)
  (2)Obs "Y:M:D" [18/21] Observation year (time.epoch)
  (2)z   [4.6/5.8] Observed Spectroscopic redshift (src.redshift)

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