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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  Ultra-steep spectrum radio sources in SDSS (Bornancini+, 2010)
Post annotation
1.J/MNRAS/406/197/table1Sample of ultrasteep spectra (USS) radio sources in the SDSS catalogue with spectroscopic redshifts (99 rows)

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. (meta.record)
  [KI2008]  Radio source number in Kimball & Ivezic (2008AJ....136..684K) (;meta.main)
  RAJ2000 "h:m:s" (i) Radio right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" (i) Radio declination (J2000) (pos.eq.dec;meta.main)
  z  Spectroscopic redshift (src.redshift)
  alpha  Spectral index between 1400MHz and 325MHz (spect.index;
  logL1.4 [W/Hz] 1.4GHz luminosity (phys.luminosity;
  rMAG mag Absolute r magnitude (phys.magAbs)
  Name (char) ID from literature (
  Sloan  Display the SDSS data for this quasar (meta.ref.url)

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