VizieR

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

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/MNRAS/274/1194
  Optical Identifications of ROSAT EUV Sources (Mason+ 1995)
ReadMe+ftp
1995MNRAS.274.1194M
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/274/1194/table1WFC optical identification programme ID summary (209 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. ((unassigned);meta.version;arith.diff;phys.veloc)
  Name (char) Source name ((unassigned);meta.version;arith.diff;spect.line.veloc)
  l_S1 (char) Limit flag on S1 ((unassigned);meta.version;arith.diff;pos.galactic.lon)
  S1 ct/ks (n) WFC survey filter S1 (60-140A) counts ((unassigned);(unassigned);(unassigned);time.duration;(unassigned);(unassigned))
  l_S2 (char) Limit flag on S2 ((unassigned);meta.version;arith.diff;pos.galactic.lon)
  S2 ct/ks (n) WFC survey filter S2 (110-200A) counts ((unassigned);meta.version;arith.diff;time.duration;(unassigned);(unassigned))
  NH 10+20cm-2(n) Galactic Hydrogen column density ((unassigned);meta.version;arith.diff;(unassigned))
  RAJ2000 "h:m:s" Right ascension J2000 ((unassigned);meta.version;arith.diff;(unassigned);arith)
  DEJ2000 "d:m:s" Declination J2000 ((unassigned);meta.version;arith.diff;(unassigned);arith)
  n_DEJ2000 (char) [g:] A 'g' indicates that the data are from the Hubble Space Telescope Guide Star Catalog ((unassigned);meta.version;arith.diff;phys.veloc.orbital)
  Vmag mag (n) V magnitude of the optical counterpart ((unassigned);meta.version;arith.diff;stat.filling;(unassigned);(unassigned))

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Vmag2 mag (n) Upper limit of Vmag when n_Vmag2='-' ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))
  u_Vmag (char) Uncertainty flag on Vmag ((unassigned);meta.version;arith.diff;pos.galactic.lon)
  n_Vmag (char) Note on Vmag (Note 1)   ((unassigned);meta.version;arith.diff;phys.veloc.orbital)
  B-V mag (n) B-V color index of the optical counterpart ((unassigned);(unassigned);(unassigned);pos.healpix;(unassigned);(unassigned);(unassigned))
  SpType (char) Spectral type of the optical counterpart (phys.absorption;em.IR.15-30um;arith.factor;pos.posAng;meta.main)
  l_alpha (char) Limit flag on alpha ((unassigned);phys.veloc.pulsat;arith;pos.galactic.lon;(unassigned))
  alpha  (n) Source apparent EUV to optical flux ratio (phot.color.excess;arith.zp;stat.min;meta.abstract;instr.offset)
  Class (char) Identification class (Note 2)   (stat;instr;stat.min;phys.atmol.sweight;meta.main)
  EWCa 0.1nm (n) Equivalent width of the Ca H 3933A chromospheric emission line (for stars only) ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  n_EWCa (char) [u-] Note on EWCa (Note 3)   ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)
  EWHa 0.1nm (n) Equivalent width of the Halpha line (for stars only) ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;meta.main)
  n_EWHa (char) [?u-] Note on EWHa (Note 3)   ((unassigned);meta.version;arith.diff;phys.veloc.orbital)
  FWHb 10+3km/s (n) Full width at half maximum of the Hbeta line (stat.fit.goodness;(unassigned);(unassigned);phys.atmol.element;meta.main)
  EWHb 0.1nm (n) Equivalent width of the Hbeta line ((unassigned);meta.version;arith.diff;phys.at.moment.magnetic;meta.main)
  u_EWHb (char) Uncertainty flag on EWHb ((unassigned);meta.version;arith.diff;pos.galactic.lon)
  X (char) [y] y: there is an X-ray telescope position available for the source ((unassigned);meta.version;arith.diff;phys.veloc.orbital)
  Note (char) [+] +: additional information in appena file ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)
  Com (char) Comments ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)

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