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/A+A/546/A122
  SDSS extremely metal-poor emission-line galaxies (Izotov+, 2012)
Post annotation
img(gal)
1.J/A+A/546/A122/table1(c)General characteristics of galaxies (74 rows)
2.J/A+A/546/A122/tablebHβ parameters (71 rows)
3.J/A+A/546/A122/tableaEmission line intensities (1767 rows)
4.J/A+A/546/A122/tablecIonic and total heavy element abundances (1101 rows)

 
Query by Constraints constraints help applied on Columns (Output Order: + - )
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Column  Constraint Explain   (UCD)
  (1)Band (char) [Bg] Band (SDSS g or B) (instr.bandpass)
  (1)DEJ2000 "d:m:s" (i) Declination (J2000) (pos.eq.dec;meta.main)
  (1)Dist Mpc Distance (pos.distance;pos.heliocentric)
  (1)e_mag mag rms uncertainty on mag (stat.error;phot.mag)
   (ALL)Galaxy (char) (i) Galaxy name (meta.id;meta.main)
  (1)mag mag B or g magnitude (phot.mag)
  (1)NED (char) ask the NED data-base about this object (meta.ref)
  (1)OName (char) Other names (meta.id)
  (1)RAJ2000 "h:m:s" (i) Right ascension (J2000) (pos.eq.ra;meta.main)
  (ALL)recno  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)
  (1)Ref  (n) Reference (Note 2)   (meta.ref;pos.frame)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)Sam (char) [abc] Sample (Note 1)   (src.sample)
  (1)SimbadName (char) Designation understandable by the Simbad data-base (meta.id)
  (1)Sloan (char) Display the SDSS data for this galaxy (meta.ref.url)
  (1)z  Redshift (src.redshift)
  (2)C(Hb)  Hβ extinction coefficient (phys.absorption)
  (2)EW(abs) 0.1nm Equivalent width of the hydrogen absorption stellar lines (spect.line.eqWidth)
  (2)EW(Hb) 0.1nm Hβ equivalent width (spect.line.eqWidth;em.line.Hbeta)
  (2)F(Hb) 10-19W/m2Uncorrected Hβ flux (phot.flux;em.line.Hbeta)
  (3)e_I(lambda)  (n) rms uncertainty on I(lambda) (stat.error)
  (3)I(lambda)  (n) Emission line intensity [I(Hβ)=100] (spect.line.intensity;arith.ratio)
  (3)Ion (char) Ion designation (phys.atmol.ionStage)
  (3)lambda 0.1nm Wavelength (em.wl)
  (4)e_Value  (n) rms uncertainty on value (stat.error;stat.value)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)Met (char) [ab] Method: a=direct, b=semi-empirical (meta.note)
  (4)Param (char) Property name (meta.id;stat.fit.param)
  (4)Value  Param value (stat.value)

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