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/ApJ/559/654
  Lyα absorption systems. V. (Chen+, 2001)
ReadMe+ftp
2001ApJ...559..654C
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/559/654/object(c)List of all QSOs (20 rows)
2.J/ApJ/559/654/table3(c)Galaxies and Absorption Systems (157 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)
   (ALL)Field (char) (i) Field (QSO) designation (meta.id;meta.main)
  (1)RAJ2000 "h:m:s" (i) Right ascension (J2000.0) (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000.0) (pos.eq.dec;meta.main)
  (1)zem  (n) Emission redshift (Note 1)   (src.redshift)
  (1)Filter (char) [F702W ] Filter (Note 1)   (meta.id;instr.filter)
  (1)TExp s (n) Exposition time (Note 1)   (time.duration;obs.exposure)
  (1)Date "Y:M:D" (n)Observation date (Note 1)   (time.epoch;obs)
  (1)Date2 "Y:M:D" (n)Second observation date (Note 1)   (time.epoch;obs)
  (1)Simbad (char) ask the Simbad data-base about this object
  (2)oRA arcsec Right Ascension offset from the QSO (Note 1)   (pos.eq.ra;arith.diff)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)oDE arcsec Declination offset from the QSO (Note 1)   (pos.eq.dec;arith.diff)
  (2)z  Galaxy redshift (src.redshift)
  (2)Rho kpc Impact parameter in units of kpc/h (src.impactParam)
  (2)DRad kpc (n) Effective disk radius in units of kpc/h (pos.distance)
  (2)BRad kpc (n) Effective bulge radius in units of kpc/h (phys.size.radius;arith.ratio)
  (2)l_D/B (char) Limit flag in D/B (meta.code.error)
  (2)D/B  (n) Disk to Bulge ratio (meta.note)
  (2)Alpha deg (n) Orientation angle (pos.posAng)
  (2)Inc deg (n) Inclination angle (src.orbital.inclination;pos.posAng)
  (2)b/a  (n) Bulge axis ratio (phys.angSize;arith.ratio)
  (2)Wmag mag (n) The WFPC2 apparent magnitude (F702W/F606W) (phot.mag;em.opt.R)
  (2)SB mag/arcsec2(n) Rest-frame B band mean surface brightness (phot.mag.sb;em.opt.B;stat.mean)
  (2)BMAG mag (n) Absolute B band magnitude minus 5*log[h] (phys.magAbs;em.opt.B;stat.fit.omc)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Kmag mag (n) The K band apparent magnitude (phot.mag;em.IR.K)
  (2)KMAG mag (n) Absolute K band magnitude minus 5*log[h] (phys.magAbs;em.IR.K;stat.fit.omc)
  (2)zabs  (n) Absorber redshift (src.redshift)
  (2)l_EWLya (char) Limit flag on EWLya (meta.code.error)
  (2)EWLya 0.1nm (n) Lyα rest-frame equivalent width (Note 2)   (spect.line.eqWidth)
  (2)l_EWCIV (char) Limit flag on EWCIV (meta.code.error)
  (2)EWCIV 0.1nm (n) The C IV (1548Å) rest-frame equivalent width (Note 2)   (spect.line.eqWidth)
  (2)_RA deg (i) Position, computed from the QSO position and the application of the positio offsets oRA and oDE (right ascension part) (pos.eq.ra;meta.main)
  (2)_DE deg (i) Position, computed from the QSO position and the application of the positio offsets oRA and oDE (declination part) (pos.eq.dec;meta.main)

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