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J/ApJS/194/42        SDSS-DR3 MgII-based black hole masses       (Rafiee+, 2011)
Supermassive black hole mass estimates using Sloan Digital Sky Survey quasar
spectra at 0.7 < z < 2.
    Rafiee A., Hall P.B.
   <Astrophys. J. Suppl. Ser., 194, 42 (2011)>
   =2011ApJS..194...42R
ADC_Keywords: QSOs ; Stars, masses ; Surveys

Keywords: catalogs - methods: data analysis - quasars: emission lines -
          quasars: general

Abstract:
    We present MgII-based black hole (BH) mass estimates for 27602 quasars
    with rest-frame UV spectra available in the Sloan Digital Sky Survey
    Data Release Three (Cat. II/259; superseded by II/294). This
    estimation is possible due to the existence of an empirical
    correlation between the radius of the broad-line region (BLR) and the
    continuum luminosity at 3000Å. We regenerate this correlation by
    applying our measurement method to UV spectra of low-redshift quasars
    in the Hubble Space Telescope/International Ultraviolet Explorer
    databases which have corresponding reverberation mapping estimates of
    the Hβ BLR's radius. Our mass estimation method uses the line
    dispersion rather than the full width at half-maximum of the
    low-ionization MgII emission line.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table3.dat       280    27602   Catalog of virial mass measurements


See also:
   II/294  : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)
   VII/260 : The SDSS-DR7 quasar catalog (Schneider+, 2010)
   J/ApJ/699/800 : Mass functions of active black holes (Vestergaard+, 2009)
   J/ApJ/680/169 : SDSS DR5 virial black hole masses (Shen+, 2008)
   J/ApJ/669/791 : Quasar black hole masses (Wilhite+, 2007)
   J/ApJ/614/91  : Black hole mass and accretion rate of AGNs (Wu+, 2004)
   J/ApJ/596/437 : Stellar-mass black holes in the SDSS (Chisholm+, 2003)
   http://www.sdss.org/ : SDSS Home Page


Byte-by-byte Description of file: table3.dat

   Bytes Format Units       Label   Explanations

   1- 18  A18   ---         SDSS    SDSS designation (HHMMSS.ss+DDMMSS.s; J2000)
  20- 29  F10.6 deg         RAdeg   Right Ascension in decimal degrees (J2000)
  31- 40  F10.6 deg         DEdeg   Declination in decimal degrees (J2000)
  42- 47  F6.4  ---         z       Redshift (spectroscopic)
  49- 54  F6.3  mag         imag    PSF i-band apparent magnitude
  56- 62  F7.3  mag         iMAG    PSF i-band absolute magnitude; K-corrected
                                    to z=2
  64- 68  I5    d           MJD     Modified Julian Date of spectroscopy
  70- 73  I4    ---         Plate   Plate number
  75- 77  I3    ---         Fiber   Fiber identification number
  79- 84  F6.4  0.1nm       sigma   Instrumental σ; in Angstroms
  86- 93  F8.4  0.1nm       sim(b)  ?=0 σ(MgII) estimates from the
                                    second moments (1)
  95-102  F8.4  0.1nm       st(b)   ?=0 Intrinsic σ(MgII) (1)
 104-111  E8.2  cW/m2/nm    F3(b)   ?=0 F_λ_ at 3000Å;
                                    in erg/s/cm2/Å (1)
 113-120  E8.2  10+37W      LL(b)   ?=0 Monochromatic 3000Å luminosity;
                                    in 1044erg/s units (2)
 122-130  F9.4  173AU      R(ld-b)  ?=0 Radius of the BLR (broad-line region)
                                    in light-days units (3)
 132-137  F6.3  ---        SN(G-b)  Median S/N in G band (1)
 139-144  F6.3  ---        SN(R-b)  Median S/N in R band (1)
 146-151  F6.3  ---        SN(I-b)  Median S/N in I band (1)
 153-160  E8.3  Msun       MBH(bb)  ?=0 BH mass, before PCA and RPC (1)
 162-169  E8.3  Msun     e_MBH(bb)  ?=0 Error in MBH(bb) (1)
 171-177  F7.4  0.1nm       sim(a)  ?=0 σ(MgII) estimates from the
                                    second moments (4)
 179-185  F7.4  0.1nm       st(a)   ?=0 Intrinsic σ(MgII); in Angstrom (4)
 187-194  E8.3  cW/m2/nm    F3(a)   ?=0 F_λ_ at 3000Å;
                                    in erg/s/cm2/Å (4)
 196-203  E8.3  10-7W       LL(a)   ?=0 Monochromatic 3000Å luminosity;
                                    in 1044erg/s units (5)
 205-213  F9.4  173AU      R(ld-a)  ?=0 Radius of the BLR (broad-line region)
                                    in light-days units (6)
 215-220  F6.3  ---        SN(G-a)  Median S/N in G band (4)
 222-227  F6.3  ---        SN(R-a)  Median S/N in R band (4)
 229-234  F6.3  ---        SN(I-a)  Median S/N in I band (4)
 236-243  E8.3  Msun       MBH(ab)  ?=0 BH mass, after PCA and before RPC (4)
 245-252  E8.3  Msun     e_MBH(ab)  ?=0 Error in MBH(ab) (4)
 254-261  E8.3  Msun       MBH(aa)  ?=0 BH mass, after PCA and RPC (7)
 263-270  E8.3  Msun     e_MBH(aa)  ?=0 Error in MBH(aa) (7)
 272-278  F7.5  ---         z(RH)   ?=0 Redshift re-estimated by this study (7)
     280  I1    ---         DR3c    [0/1] In DR3 complete subsample? 0=no, 1=yes

Note (1): Before applying Principal Component Analysis and Radiation
          Pressure Correction.
Note (2): Before applying Principal Component Analysis and Radiation
          Pressure Correction. Bolometric Luminosity can be estimated using
          BC(3000Å)=5.15 and the monochromatic luminosity at 3000Å
          (Shen et al. 2008, Cat. J/ApJ/680/169).
Note (3): Before applying Principal Component Analysis and Radiation
          Pressure Correction.
Note (4): After applying Principal Component Analysis but before Radiation
          Pressure Correction. These are the recommended results.
Note (5): After applying Principal Component Analysis but before Radiation
          Pressure Correction. These are the recommended results. Bolometric
          Luminosity can be estimated using BC(3000Å)=5.15 and the
          monochromatic luminosity at 3000Å (Shen et al. 2008,
          Cat. J/ApJ/680/169).
Note (6): After applying Principal Component Analysis but before Radiation
          Pressure Correction. These are the recommended results.
Note (7): After applying Principal Component Analysis and Radiation
          Pressure Correction.


History:
    From electronic version of the journal
(End)                 Greg Schwarz [AAS], Emmanuelle Perret [CDS]    01-Aug-2011