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

  
J/ApJ/872/21
  SDSS RM project: <10day CIV BAL variability (Hemler+, 2019)
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2019ApJ...872...21H
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/872/21/table2(c)Final quasar sample information (27 rows)
2.J/ApJ/872/21/table3CIV BAL measurements from 2014 mean spectra (37 rows)
3.J/ApJ/872/21/table4CIV BAL measurements per epoch (1587 rows)
4.J/ApJ/872/21/table5Short-timescale variability among epoch pairs (54 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 DR10 designation (JHHMMSS.ss+DDMMSS.s) (meta.id)
   (ALL)RMID  (i) [39/786] Reverberation Mapping (RM) ID (from Shen+, 2015, J/ApJS/216/4) (meta.id;meta.main)
  (1)RAJ2000 deg (i) [211.47/216.1] Right Ascension (J2000) (Note 1)   (pos.eq.ra;meta.main)
  (1)DEJ2000 deg (i) [52/54.5] Declination (J2000) (Note 1)   (pos.eq.dec;meta.main)
  (1)z   [1.62/3.72] Redshift (Shen+ 2019ApJS..241...34S) (src.redshift)
  (1)imag mag [16.4/20.4] SDSS i-band (AB) magnitude, SDSS DR10 (Note 1)   (phot.mag;em.opt.I)
  (1)SN1700   [6/52] Median signal-to-noise (Note 2)   (stat.snr)
  (1)Nep   [3/69] Number of epochs (meta.number)
  (1+4)dtRest d [2/13.8] Median rest-frame time separation between observations (time.interval)
  (1)cFit (char) Continuum Fit (Note 3)   (meta.code)

ALL cols		    
 (i)indexed column
  (1)eFit (char) Emission-Line Fit (Note 4)   (meta.code)
  (1)N2014  (n)Number of CIV BAL measurements from 2014 for this QSO (link to Table 3) (meta.number)
  (1)Nciv  (n)Number of CIV BAL measurements per epoch for this QSO (link to Table 4) (meta.number)
  (1)Np  (n)Number of measurements for this QSO with epoch pairs (link to Table 5) (meta.number)
  (1)S16 (char) Display peak velocitites data from Shen+, 2016, J/ApJ/831/7 (meta.ref.url)
  (1)Sloan (char) Display the online SDSS data for the nearest object (meta.ref.url)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (1)NED (char) ask the NED data-base about this object (meta.ref.url)
  (2+3+4)m_RMID (char) [AB] BAL ID (meta.code.multip)
  (2)Vmax km/s [2464/29148] BAL velocity bounds, max (phys.veloc;stat.max)
  (2)Vmin km/s [-338/21819] BAL velocity bounds, min (phys.veloc;stat.min)
  (2+3)Vcent km/s [1371/23559] Absorbed-flux weighted centroid velocity (phys.veloc)
  (2+3)Depth   [0.12/0.75] Normalized mean fractional depth (phys.absorption.opticalDepth;arith.ratio;stat.mean)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3)EW 0.1nm [2.2/88.5] CIV equivalent width; in Angstrom units (spect.line.eqWidth)
  (2+3)e_EW 0.1nm [0.1/1.3] Uncertainty in EW (stat.error;spect.line.eqWidth)
  (2)FA14 (char) BAL designation (Note 1)   (meta.code)
  (2)Pv (char) Flag on PV or mini-BAL (Note 2)   (meta.code)
  (3)MJD d Modified Julian Date (JD-2400000.5) (time.epoch)
  (4)MJD1 d First Epoch, Modified Julian Date (time.epoch)
  (4)MJD2 d Second Epoch, Modified Julian Date (time.epoch)
  (4)EW1 0.1nm [0.6/47.1] CIV equivalent width at MJD1; in Angstrom units (spect.line.eqWidth)
  (4)e_EW1 0.1nm [0/0.7] Uncertainty in EW1 (stat.error)
  (4)EW2 0.1nm [0.6/47.1] CIV equivalent width at MJD2; in Angstrom units (spect.line.eqWidth)
  (4)e_EW2 0.1nm [0/0.7] Uncertainty in EW2 (stat.error)
  (4)dEW 0.1nm [-5.8/6.4] Change in equivalent width; in Angstrom units (arith.rate;spect.line.eqWidth)
  (4)e_dEW 0.1nm [0.1/1] Uncertainty in dEW (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (4)sigdEW   [-22.4/10.1] Significance of the change in EW (stat.likelihood;obs)
  (4)GB   [4.1/105.3] G value, BAL region (Note 1)   (stat.fit.omc)
  (4)GC   [-1.4/1.9] G value, continuum region (Note 1)   (stat.fit.omc)
  (4)fchip1 % [0/0.93] fraction of pixels, χ>1 (stat.fit.param)
  (4)fchim1 % [0/0.86] fraction of pixels, χ<-1 (stat.fit.param)
  (4)dVco km/s [290/7250] Coordinated velocity (Note 2)   (phys.veloc)

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