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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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J/ApJ/559/864
 Extragalactic ultracompact H II regions (Johnson+, 2001)
Post annotation
img(gal)
1.J/ApJ/559/864/ngc0253Ultra-dense HII candidates in NGC 253 (adopted distance: 2.5Mpc) (5 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)
  [JKM2001]  Source identification (NGC 253 N) (meta.id;meta.main)
  RAJ2000 "h:m:s" Right ascension (J2000) (pos.eq.ra;meta.main)
  DEJ2000 "d:m:s" Declination (J2000) (pos.eq.dec;meta.main)
  L1.3cm 10+17W/Hz1.3cm luminosity (phys.luminosity;em.radio)
  e_L1.3cm 10+17W/Hzrms uncertainty on L1.3cm (stat.error)
  L2cm 10+17W/Hz(n) 2cm luminosity (phys.luminosity;em.radio)
  e_L2cm 10+17W/Hz(n) rms uncertainty on L2cm (stat.error)
  L3.6cm 10+17W/Hz3.6cm luminosity (phys.luminosity;em.radio)
  e_L3.6cm 10+17W/Hzrms uncertainty on L3.6cm (stat.error)
  QLyc 10+49s-1 Production rate of Lyman continuum photon (phot.count;em.UV)
  e_QLyc 10+49s-1 rms uncertainty on QLyc (stat.error)
  SI  Spectral index 3.6cm to 1.3cm (spect.index;em.radio.6-12GHz)
  e_SI  rms uncertainty on SI (stat.error)
  I (char) I-band counterpart ? (meta.note)
  Halpha (char) Hα counterpart ? (meta.note)
  [AU88] (char) Ulvestad & Antonucci (1997ApJ...488..621U) number (meta.id)

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