VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN 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/721/1
  Keck ESI observations of Lyα systems (Penprase+, 2010)
ReadMe+ftp
2010ApJ...721....1P
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/721/1/table1(c)SDSS-DR5 metal-poor DLA candidates (405 rows)
2.J/ApJ/721/1/table2(c)Targets observed, magnitudes, and exposure times (44 rows)
3.J/ApJ/721/1/table13Elemental abundances for DLA systems (35 rows)
4.J/ApJ/721/1/table14Column densities for the species CIV and SiIV (41 rows)

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)SDSS (char) SDSS-DR7 IAU name of the QSO (Note 1)   (meta.id;meta.main)
  (1)A (char) A indicates that abundances and observations for DLA systems are given for this quasar (tables 2, 13 and 14) (meta.ref.url)
  (1)zabs  Absorption redshift (src.redshift)
  (1+3+4)logNHI [cm-2] Log of the HI column density (phys.columnDensity)
   (ALL)QSO (char) (i) QSO designation as in other tables (meta.id)
  (1)DR7+8 (char) Link to data from SDSS-DR7 and -DR8 photometric catalogs (meta.ref.url)
  (1)Sloan (char) Display the SDSS online data for this quasar (meta.ref.url)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref)
  (1)_RA deg (i) Positions from SDSS name (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Positions from SDSS name (declination part) (pos.eq.dec;meta.main)

ALL cols		    
 (i)indexed column
  (2+3+4)zDLA  DLA redshift (src.redshift)
  (2)RAJ2000 "h:m:s" (i) Hour of right ascension (J2000) (pos.eq.ra;meta.main)
  (2)DEJ2000 "d:m:s" (i) Degree of declination (J2000) (pos.eq.dec;meta.main)
  (2)Rmag mag R-band magnitude (phot.mag;em.opt.R)
  (2)Exp08 s (n) Exposure time (2008) (time.duration;obs.exposure)
  (2)Exp07 s (n) Exposure time (2007) (time.duration;obs.exposure)
  (3)e_logNHI [cm-2] logNHI uncertainty (stat.error)
  (3)l_[C/H] (char) Limit flag on [C/H] (meta.code.error;phys.abund)
  (3)[C/H] [-] (n) Abundance [C/H] (phys.abund)
  (3)f_[C/H] (char) [abc] Flag on [C/H] (meta.code)
  (3)l_[O/H] (char) Limit flag on [O/H] (meta.code.error;phys.abund)
  (3)[O/H] [-] (n) Abundance [O/H] (phys.abund)
  (3)f_[O/H] (char) [abc] Flag on [O/H] (meta.code)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (3)l_[Si/H] (char) Limit flag on [Si/H] (meta.code.error;phys.abund)
  (3)[Si/H] [-] (n) Abundance [Si/H] (phys.abund)
  (3)f_[Si/H] (char) [abc] Flag on [Si/H] (meta.code)
  (3)l_[Al/H] (char) Limit flag on [Al/H] (meta.code.error;phys.abund)
  (3)[Al/H] [-] (n) Abundance [Al/H] (phys.abund)
  (3)f_[Al/H] (char) [abc] Flag on [Al/H] (meta.code)
  (3)l_[Fe/H] (char) Limit flag on [Fe/H] (meta.code.error;phys.abund.Fe)
  (3)[Fe/H] [-] (n) Abundance [Fe/H] (phys.abund)
  (3)f_[Fe/H] (char) [abc] Flag on [Fe/H] (meta.code)
  (3)l_[Mg/H] (char) Limit flag on [Mg/H] (meta.code.error;phys.abund)
  (3)[Mg/H] [-] (n) Abundance [Mg/H] (phys.abund)
  (3)f_[Mg/H] (char) [abc] Flag on [Mg/H] (meta.code)
  (4)l_logNCIV (char) Limit flag on logNCIV (meta.code.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)logNCIV [cm-2] Log of CIV column density (phys.columnDensity)
  (4)e_logNCIV [cm-2] (n) logNCIV uncertainty (stat.error)
  (4)l_logNSiIV (char) Limit flag on logNSiIV (meta.code.error)
  (4)logNSiIV [cm-2] (n) Log of SiIV column density (phys.columnDensity)
  (4)e_logNSiIV [cm-2] (n) logNSiIV uncertainty (stat.error)

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