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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/MNRAS/496/309
  Behaviour of the MgII 2798Å line in AGNs (Homan+, 2020)
ReadMe+ftp
2020MNRAS.496..309H
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/496/309/table4Overview of the results of the spectral fitting for the supervariable sample (43 rows)

Simple ConstraintList Of Constraints
 
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)
  Name (char) SDSS source designation (HHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  MgII (char) [01-] Indicates whether |ΔfMgII|≥0.5 or the continuum is stable (Note 1)   (meta.code)
  CLQ   [0/1] Indicates whether the object was identified as a CLQ in MacLeod et al. (2019ApJ...874....8M, Cat. J/ApJ/874/8) (meta.code)
  maxDtsp d Time span between the spectral epochs, in the AGN rest frame (time.interval)
  DL2798 10+35W Change in the continuum luminosity (Note 2)   (phys.luminosity;em.UV)
  e_DL2798 10+35W Error on DL2798 (Note 2)   (stat.error)
  DLMgII 10+35W Change in the MgII line luminosity (Note 2)   (phys.luminosity;em.UV)
  e_DLMgII 10+35W Error on DLMgII (Note 2)   (stat.error)
  Df2798  Fractional change in the continuum flux level at the line centre (Note 2)   (phot.flux;arith.ratio)
  DfMgII  Fractional change in the MgII line flux (Note 2)   (phot.flux;arith.ratio)

ALL cols		    
 (i)indexed column
  Dsigma 0.1nm Change in the MgII line width (Note 2)   (spect.line.eqWidth)
  e_Dsigma 0.1nm Error on Dsigma (Note 2)   (stat.error)
  z  Redshift (src.redshift)
  logLbol [10-7W] Logarithm of the bolometric luminosity (Note 3)   (phys.luminosity)
  logMBH [Msun] Logarithm of the black hole mass (Note 3)   (phys.mass)
  logEddr [-] Logarithm of the Eddington ratio (Note 3)   (phys.luminosity;arith.ratio)
  maxDg mag Maximum absolute change in g-band photometry over the period between spectral observations (Note 4)   (phot.mag;arith.diff)
  Tel (char) Telescope with which the latest spectral observation was made (instr.tel;obs)
  Simbad  ask the Simbad data-base about this object (meta.ref.url)
  _RA deg (i) Right Ascension (J2000) from SIMBAD (not part of the original data) (pos.eq.ra;meta.main)
  _DE deg (i) Declination (J2000) from SIMBAD (not part of the original data) (pos.eq.dec;meta.main)

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