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/table1(c)ROSAT NEP raster X-ray catalogue (805 rows)
2.J/A+A/645/A95/table3(c)ROSAT NEP candidate optical ID catalogue (920 rows)
3.J/A+A/645/A95/table4(c)AGN candidates selected by mid-IR colours (185 rows)
Help Xmatch is

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+2)XID   [1/805] Internal X-ray identification number (meta.id;meta.main)
  (1)RAX deg (i) X-ray right ascension (J2000.0) (pos.eq.ra;meta.main)
  (1)DEX deg (i) X-ray declination (J2000.0) (pos.eq.dec;meta.main)
  (1)ePosX arcsec X-ray position error (stat.error;pos)
  (1+3)ML  Existence maximum likelihood (threshold 11) (stat.likelihood)
  (1)CTS ct Net X-ray source counts (phot.count;em.X-ray)
  (1)e_CTS ct Error on net source counts (stat.error)
  (1)XML  Extent maximum likelihood (stat.likelihood;phys.angSize)
  (1+3)ExpTime s Exposure time (time.duration;obs.exposure)
  (1)FX 10-17W/m20.5-2 keV X-ray flux (Note 1)   (phot.flux;em.X-ray)

ALL cols		    
 (i)indexed column
  (1)FlagM   [0/1] Manual parameter determination flag (meta.code.error)
  (2)m_XID (char) [abcd] letters for multiple counterparts (meta.code.multip)
  (2)RAO deg (i) Optical counterpart right ascension (J2000.0) (pos.eq.ra;meta.main)
  (2)DEO deg (i) Optical counterpart declination (J2000.0) (pos.eq.dec;meta.main)
  (2+3)magOpt mag Optical AB magnitude in r_mag Band (phot.mag;em.opt)
  (2)r_magOpt (char) [GPSirz] Source of the optical magnitude/coordinates (Note 1)   (meta.ref;pos.frame)
  (2)FX/FO  X-ray to optical flux ratio (phot.flux;arith.ratio)
  (2)magIR mag (n) Infrared AB magnitude in r_magIR band (phot.mag;em.opt.I)
  (2)r_magIR (char) [Wi] Source of the infrared magnitude (Note 2)   (meta.ref;pos.frame)
  (2)CI1-2  (n) Mid-infrared colour WISE W1-W2 or IRAC I1-I2 (phot.color;em.IR;em.IR)
  (2+3)Class  Optical counterpart ID class (Note 3)   (meta.code.class)
  (2)z  (n) Redshift (src.redshift)
  (2)Q (char) Quality of redshift (Note 4)   (meta.code.qual;src.redshift)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)logLX [10-7W] (n) log (0.5-2keV luminosity), in erg/s unit (phys.luminosity;em.X-ray)
  (2)IDQ   [0/2] Identification quality (Note 5)   (meta.code.qual)
  (2)Com (char) Notes on individual objects (meta.note)
  (3)RAI deg (i) Mid-IR AGN candidate right ascension (J2000.0) (pos.eq.ra;meta.main)
  (3)DEI deg (i) Mid-IR AGN candidate declination (J2000.0) (pos.eq.dec;meta.main)
  (3)I1mag mag IRAC I1 AB magnitude (phot.mag;em.IR.3-4um)
  (3)I1-I2 mag Mid-infrared colour IRAC I1-I2 (phot.color;em.IR;em.IR)
  (3)e_I1-I2 mag Error of mid-IR colour (stat.error)
  (3)zph  Photometric redshift (src.redshift)
  (3)uCTS ct Net X-ray source count upper limit (phot.count;em.X-ray)
  (3)uFX 10-17W/m2Upper limit to 0.5-2 keV X-ray flux (Note 2)   (phot.flux;em.X-ray)
  (3)uFX/FO  Upper limit to X-ray to optical flux ratio (phot.flux;stat.max)
  (3)ulogLX [10-7W] Upper limit log (0.5-2 keV luminosity) in erg/s unit (phys.luminosity;em.X-ray)

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