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VizieR

Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/A+A/449/425
  Optical identification of ROSAT-FSC sources (Mickaelian+, 2006)
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img(gal)
1.J/A+A/449/425/table1A catalog of Hamburg/ROSAT-FSC identifications for δ>0, |b|>30 and X-ray counts>0.04ct/s: 3202 objects for 2696 ROSAT sources. (3202 rows)

 
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)
  1RXS (char) ROSAT name (Cat. IX/29) (meta.id;meta.main)
  m_1RXS (char) [a-e] Optical counterpart component (meta.code.multip)
  ePos arcsec ROSAT positional error (stat.error)
  CR ct/s ROSAT count rate (phot.count;em.X-ray)
  e_CR ct/s (n) ROSAT count rate error (stat.error)
  HR1  (n) ROSAT hardness ratio 1 (0.1-0.4,0.5/2.0keV) (phot.flux;arith.ratio)
  e_HR1  (n) ROSAT hardness ratio 1 error (stat.error)
  HR2  (n) ROSAT hardness ratio 2 (0.5-0.9,0.9-2.0 keV) (phot.flux;arith.ratio)
  e_HR2  (n) ROSAT hardness ratio 2 error (stat.error)
  RAJ2000 "h:m:s" (i) DSS2 right ascension (J2000) (pos.eq.ra;meta.main)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  DEJ2000 "d:m:s" (i) DSS2 declination (J2000) (pos.eq.dec;meta.main)
  Opt-X arcsec Distance between optical and X-ray positions (pos.angDistance)
  O-Xr  Relative distance optical/X-ray (Opt-X/ePos) (pos.angDistance;arith.ratio)
  OmagM mag (n) MAPS O magnitude (phot.mag;em.opt.B)
  (O-E)M mag (n) MAPS O-E colour index (phot.color;em.opt.B;em.opt.R)
  pm mas/yr (n) USNO-B1.0 total proper motion (pos.pm)
  Omag mag (n) USNO-B1.0 O magnitude (mean of DSS1 blue and DSS2 blue) (phot.mag;em.opt.B)
  Emag mag (n) USNO-B1.0 E magnitude (mean of DSS1 red and DSS2 red) (phot.mag;em.opt.R)
  O-E mag (n) USNO-B1.0 O-E colour (mean of DSS1 O-E and DSS2 O-E) (phot.color;em.opt.B;em.opt.R)
  Imag mag (n) USNO-B1.0 I magnitude (DSS2 IR) (phot.mag;em.opt.I)
  Dmag mag (n) USNO-B1.0 magnitude difference between DSS2 and DSS1 (mean of blue and red) (phot.mag;arith.diff)
  Class (char) Classification of the objects (Note 1)   (src.class)
  Com (char) Comments on the objects (Note 2)   (meta.note)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  OptType (char) Associations with known optical objects: types (Note 3)   (src.class)
  ONames (char) Optical associations: names of the objects (meta.id.cross)
  OdistO arcsec (n) Optical associations: distance between the catalog and DSS2 red (our) positions (pos.angDistance)
  OdistX arcsec (n) Optical associations: distance between the catalog and ROSAT positions (pos.angDistance)
  Type (char) Optical associations: classification (src.class)
  mag mag (n) Optical associations: catalog magnitudes (typically B magnitude) (phot.mag;em.opt)
  n_mag (char) [gR] Band in not B magnitude (meta.note)
  z  (n) Optical associations: redshift (src.redshift)
  Aband (char) Non-optical associations: wavelength domain (radio, IR, X-ray) (instr.bandpass)
  ANames (char) Non-optical associations: names of sources (meta.id.cross)
  AdistO arcsec (n) Non-optical associations: distance between the source and DSS2 red (our) positions (pos.angDistance)
  AdistX arcsec (n) Non-optical associations: distance between the source and ROSAT positions (pos.angDistance)
  USNO-B  Display the details from the USNO-B1.0 catalog (I/284) (meta.ref.url)

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