VizieR

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

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/A+A/645/A95
  NEP raster ROSAT X-ray/Optical catalog (Hasinger+, 2021)
ReadMe+ftp
2021A&A...645A..95H
Similar Catalogs
Post annotation 		img(gal)
1.J/A+A/645/A95/table3ROSAT NEP candidate optical ID catalogue (920 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)
  XID  Internal X-ray identification number (meta.id;meta.main)
  m_XID (char) [abcd] letters for multiple counterparts (meta.code.multip)
  RAO deg (i) Optical counterpart right ascension (J2000.0) (pos.eq.ra;meta.main)
  DEO deg (i) Optical counterpart declination (J2000.0) (pos.eq.dec;meta.main)
  magOpt mag Optical AB magnitude in r_mag Band (phot.mag;em.opt)
  r_magOpt (char) [GPSirz] Source of the optical magnitude/coordinates (Note 1)   (meta.ref;pos.frame)
  FX/FO  X-ray to optical flux ratio (phot.flux;arith.ratio)
  magIR mag (n) Infrared AB magnitude in r_magIR band (phot.mag;em.opt.I)
  r_magIR (char) [Wi] Source of the infrared magnitude (Note 2)   (meta.ref;pos.frame)
  CI1-2  (n) Mid-infrared colour WISE W1-W2 or IRAC I1-I2 (phot.color;em.IR;em.IR)
  Class  Optical counterpart ID class (Note 3)   (meta.code.class)
  z  (n) Redshift (src.redshift)
  Q (char) Quality of redshift (Note 4)   (meta.code.qual;src.redshift)
  logLX [10-7W] (n) log (0.5-2keV luminosity), in erg/s unit (phys.luminosity;em.X-ray)
  IDQ   [0/2] Identification quality (Note 5)   (meta.code.qual)
  Com (char) Notes on individual objects (meta.note)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
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usage  Display UCD1+    UCD1  
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