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J/ApJ/871/57
  SDSS & MMT obs. of extremely massive QSOs & gal. (Yoon+, 2019)
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img(gal)
1.J/ApJ/871/57/table1(c)Properties of extremely massive quasars (52 rows)
2.J/ApJ/871/57/table2(c)Galaxies observed by the MMT Hectospec (661 rows)
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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 DR7 quasar name (JHHMMSS.ss+DDMMSS.s) (Note 1)   (meta.id;meta.main)
  (1)Ng  (n)Number of galaxies within 0.5deg of this quasar (link to MMT observations – Table 2) (meta.ref.url)
   (ALL)zspec   [0.24/0.4] Spectroscopic redshifts (Note 1)   (src.redshift;pos.heliocentric)
  (1)logL5100 [10-7J] [44/45.8] Log of the 5100 continuum luminosity; in units of erg/s (phys.luminosity)
  (1)e_logL5100 [10-7J] [0/0.04] Uncertainty in logL5100 (stat.error)
  (1)FWHMHb km/s [8162/38343] Hβ full width at half maximum (spect.line.width)
  (1)e_FWHMHb km/s [154/8713] Uncertainty in FWHMHb (stat.error)
  (1)logMBH [Msun] [9.4/10.6] Log of black hole mass (phys.mass)
  (1)e_logMBH [Msun] [0.01/0.4] Uncertainty in logMBH (stat.error)
  (1)d0.5Mpc   [-1/10.2] Overdensity around quasar at 0.5Mpc (Note 2)   (phys.density;arith.ratio)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)d7th   [-0.6/19.1] Overdensity around quasar at 7th nearest galaxy (Note 2)   (phys.density;arith.ratio)
  (1)DPE (char) Double peaked Hβ emission? (Y=QSOs with double-peaked broad Hβ lines; 30 occurrences) (Note 3)   (meta.code)
   (ALL)DR7+DR12 (char) Display data from SDSS -DR7 (II/294) and -DR12 (V/147) within 0.5" (meta.ref.url)
   (ALL)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)
  (1)LEDA (char) ask the LEDA data-base about this object (meta.ref.url)
  (1)_RA deg (i) Position from SDSS name (right ascension part) (pos.eq.ra;meta.main)
  (1)_DE deg (i) Position from SDSS name (declination part) (pos.eq.dec;meta.main)
  (2)RAJ2000 deg (i) [208/257.1] Right Ascension (J2000) (pos.eq.ra;meta.main)
  (2)DEJ2000 deg (i) [13.2/61.3] Declination (J2000) (pos.eq.dec;meta.main)
  (2)f_zspec (char) Redshift Measurement Type (Note 1)   (meta.code)
  (2)rmag mag [17.8/21] SDSS r-band apparent (AB) magnitude (phot.mag;em.opt.R)

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