VizieR

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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
  Ly{alpha} 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. ((unassigned);phys.veloc.orbital;arith.diff;phys.veloc)
   (ALL)Field (char) (i) Field (QSO) designation ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc;arith)
  (1)RAJ2000 "h:m:s" Right ascension (J2000.0) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (1)DEJ2000 "d:m:s" Declination (J2000.0) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (1)zem  (n) Emission redshift (Note 1)   ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (1)Filter (char) [F702W ] Filter (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc;phys.SFR)
  (1)TExp s (n) Exposition time (Note 1)   ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);meta.main)
  (1)Date "Y:M:D" (n)Observation date (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;pos.centroid;stat.param)
  (1)Date2 "Y:M:D" (n)Second observation date (Note 1)   ((unassigned);phys.veloc.orbital;arith.diff;pos.centroid;stat.param)
  (1)Simbad (char) ask the Simbad data-base about this object ((unassigned);phys.veloc.orbital;arith.diff)
  (2)oRA arcsec Right Ascension offset from the QSO (Note 1)   ((unassigned);(unassigned);(unassigned);(unassigned);instr.background)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)oDE arcsec Declination offset from the QSO (Note 1)   ((unassigned);pos.galactic.lon;arith.factor;(unassigned);instr.background)
  (2)z  Galaxy redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (2)Rho kpc Impact parameter in units of kpc/h ((unassigned);(unassigned);(unassigned);phys.polarization;meta.main)
  (2)DRad kpc (n) Effective disk radius in units of kpc/h ((unassigned);(unassigned);(unassigned);em.UV.10-50nm)
  (2)BRad kpc (n) Effective bulge radius in units of kpc/h ((unassigned);(unassigned);(unassigned);(unassigned);instr.offset)
  (2)l_D/B (char) Limit flag in D/B ((unassigned);phys.veloc.orbital;arith.diff;pos.galactic.lon)
  (2)D/B  (n) Disk to Bulge ratio ((unassigned);(unassigned);(unassigned);phys.veloc.orbital)
  (2)Alpha deg (n) Orientation angle ((unassigned);phys.veloc.orbital;arith.diff;instr.spect;meta.main)
  (2)Inc deg (n) Inclination angle ((unassigned);(unassigned);(unassigned);pos.earth.lon;instr.dispersion;meta.main)
  (2)b/a  (n) Bulge axis ratio (time.lifetime;(unassigned);arith.factor;time.period.rotation;instr.offset)
  (2)Wmag mag (n) The WFPC2 apparent magnitude (F702W/F606W) ((unassigned);(unassigned);(unassigned);stat.filling;(unassigned);(unassigned))
  (2)SB mag/arcsec2(n) Rest-frame B band mean surface brightness ((unassigned);(unassigned);(unassigned);meta.preview;(unassigned);phys.veloc.transverse;meta.main)
  (2)BMAG mag (n) Absolute B band magnitude minus 5*log[h] ((unassigned);phys.veloc.orbital;arith.diff;(unassigned);(unassigned);pos.bodyrc.lat;meta.main)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Kmag mag (n) The K band apparent magnitude ((unassigned);phys.veloc.orbital;arith.diff;stat.filling;(unassigned);(unassigned))
  (2)KMAG mag (n) Absolute K band magnitude minus 5*log[h] ((unassigned);(unassigned);(unassigned);(unassigned);(unassigned);pos.bodyrc.lat;meta.main)
  (2)zabs  (n) Absorber redshift ((unassigned);(unassigned);(unassigned);pos.parallax;meta.main)
  (2)l_EWLya (char) Limit flag on EWLya ((unassigned);(unassigned);(unassigned);pos.galactic.lon)
  (2)EWLya 0.1nm (n) Ly{alpha} rest-frame equivalent width (Note 2)   ((unassigned);phys.veloc.orbital;arith.diff;phys.at.moment.magnetic;meta.main)
  (2)l_EWCIV (char) Limit flag on EWCIV ((unassigned);(unassigned);(unassigned);pos.galactic.lon)
  (2)EWCIV 0.1nm (n) The C IV (1548Å) rest-frame equivalent width (Note 2)   ((unassigned);(unassigned);(unassigned);phys.at.moment.magnetic;meta.main)
  (2)_RA deg Position, computed from the QSO position and the application of the positio offsets oRA and oDE (right ascension part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)
  (2)_DE deg Position, computed from the QSO position and the application of the positio offsets oRA and oDE (declination part) ((unassigned);(unassigned);(unassigned);(unassigned);arith)

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

The following problems were encountered in this VizieR run:
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846440140 Where phase=3 and catid=15590654
**** 
**** --POSTGRES MSG db=0
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****Error execute query: UPDATE METAstat set nother=nother+1, tother=846440140 Where phase=3 and catid=15590654
**** 
**** --POSTGRES MSG db=0
**** Report from: stdb_pg,     Status: STDB_ERR 
****ERROR:  invalid page in block 0 of relation base/16403/6104 
****ERROR:  invalid page in block 0 of relation base/16403/6104
If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR141508.err (2026-10-27T18:15:39)
-3
-source=J/ApJ/559/654
-ref=VIZ6ae0ea4b228c4
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