VizieR Search Page [Back] ⋅ [Forwd] ⋅ [Print] ⋅ [Close]
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/AJ/155/189
  LAMOST Quasar Survey: quasar properties from DR2&3 (Dong+, 2018)
ReadMe+ftp
2018AJ....155..189D
Similar Catalogs
Post annotation 		img(gal)
1.J/AJ/155/189/table12The LAMOST Quasar Survey Data Release Two Quasar Catalog (9024 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)
  ObsID   [102141/347512058] Observation identifier in LAMOST database (OBSID) (meta.id)
  Target (char) Target designation in LAMOST database (JHHMMSS.ss+DDMMSS.s, J2000) (DESIGNATION) (meta.id;meta.main)
  RAJ2000 deg (i) Right Ascension in decimal degrees (J2000) (RA) (pos.eq.ra;meta.main)
  DEJ2000 deg (i) Declination in decimal degrees (J2000) (DEC) (pos.eq.dec;meta.main)
  PlanId (char) Spectroscopic plan identification (PLANID) (obs.field)
  spId  (n) [1/16] Spectrograph identification (SPID) (meta.id;instr)
  FiberId   [0/250] Fiber number of the spectrum (FIBERID) (meta.note)
  MJD d [55858/57165] Modified Julian Date of the spectroscopic observation (MJD) (time.epoch)
  Source  Source of quasar candidate (SOURCE_FLAG) (Note 1)   (meta.code)
  iMag mag (n) [-35.3985/-1.8353] Absolute i-band magnitude with K-correction to z=2 following Richards et al. (2006, J/AJ/131/2766) (Mi) (phys.magAbs)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  Class (char) Classification given by visual inspection (CLASS_VI) (src.class)
  f_Class   [0/1] Classification flag (1=Uncertain classification) (CLASS_FLAG) (meta.code)
  z-pipeline  (n) [-0.0041/4.088] Redshift given by LAMOST pipeline (Z_PIPELINE) (src.redshift;pos.heliocentric)
  z-vi  (n) [0/5.0087] Redshift given by visual inspection (Z_VI) (src.redshift;pos.heliocentric)
  QF-z  (n) [1/9] Redshift quality flag (Z_FLAG) (Note 2)   (src.redshift)
  S/N-Spec   [-1.0463/134.872] Median signal-to-noise ratio per pixel of the spectrum (SNR_SPEC) (stat.snr)
  FWHM-Hab km/s (n) [0/14230] Full width at half maximum of broad Hα (FWHMBROADHA) (spect.line.width)
  EW-Hab 0.1nm (n) [0/1.63e+11] Rest-frame equivalent width of broad Hα (Å) (EWBROADHA) (spect.line.eqWidth)
  FWHM-Han km/s (n) [0/1200] Full width at half maximum of narrow Hα (FWHMNARROWHA) (spect.line.width)
  EW-Han 0.1nm (n) [0/3.94e+10] Rest-frame equivalent width of narrow Hα (Å) (EWNARROWHA) (spect.line.eqWidth)
  EW-NII6584 0.1nm (n) [0/1.84e+10] Rest-frame equivalent width of [N II]6584 (Å) (EWNII6585) (spect.line.eqWidth)
  EW-SII6718 0.1nm (n) [0/5290.64] Rest-frame equivalent width of [S II]6718 (Å) (EWSII6718) (spect.line.eqWidth)
  EW-SII6732 0.1nm (n) [0/1.12e+07] Rest-frame equivalent width of [S II]6732 (Å) (EWSII6732) (spect.line.eqWidth)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  EW-FeHa 0.1nm (n) [0/32039.6] Rest-frame equivalent width of Fe within 6000-6500Å (Å) (EWFEHA) (spect.line.eqWidth)
  NPix-Ha   [0/252] Number of good pixels at the rest-frame 6400-6765Å (LINENPIXHA) (meta.number)
  S/N-Ha  (n) [0/273.564] Median signal-to-noise ratio per pixel at the rest-frame 6400-6765Å (LINEMEDSN_HA) (em.wl.central;stat.median)
  chi2-Ha   [-1/32.6007] Reduced χ2 of Hα emission line fit (LINEREDCHI2HA) (stat.fit.chi2)
  QF-Ha  (n) [-1/1] Quality flag of Hα fitting (LINEFLAGHA) (Note 3)   (meta.code.qual;stat.fit;spect.line)
  FWHM-Hb km/s (n) [0/18927.2] Full width at half maximum of broad Hβ (FWHMBROADHB) (spect.line.width)
  EW-Hb 0.1nm (n) [0/4.95e+17] Rest-frame equivalent width of broad Hβ (Å) (EWBROADHB) (spect.line.eqWidth)
  FWHM-Hbn km/s (n) [0/1200] Full width at half maximum of narrow Hβ (FWHMNARROWHB) (spect.line.width)
  EW-Hbn 0.1nm (n) [0/7.09e+15] Rest-frame equivalent width of narrow Hβ (Å) (EWNARROWHB) (spect.line.eqWidth)
  EW-OIII4959 0.1nm (n) [0/1.64e+17] Rest-frame equivalent width of [O III]4959 (Å) (EWOIII4959) (spect.line.eqWidth)
  EW-OIII5007 0.1nm (n) [0/5.06e+17] Rest-frame equivalent width of [O III]5007 (Å) (EWOIII5007) (spect.line.eqWidth)
  EW-FeHb 0.1nm (n) [0/5.63e+18] Rest-frame equivalent width of Fe within 4435-4685Å (Å) (EWFEHB) (spect.line.eqWidth)
  NPix-Hb   [0/346] Number of good pixels at the rest-frame 4750-4950Å (LINENPIXHB) (meta.number)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  S/N-Hb  (n) [0/136] Median signal-to-noise ratio per pixel at the rest-frame 4750-4950Å (LINEMEDSN_HB) (em.wl.central;stat.median)
  chi2-Hb  (n) [-1/71.4036] Reduced χ2 of Hβ emission line fit (LINEREDCHI2HB) (stat.fit.chi2)
  QF-Hb  (n) [-1/1] Quality flag of Hβ fitting (LINEFLAGHB) (Note 3)   (meta.code.qual;stat.fit;spect.line)
  FWHM-MGII2796b km/s (n) [0/270093] Full width at half maximum of the broad Mg II 2796 (FWHMBROADMGII_2796) (spect.line.width)
  EW-MGII2796b 0.1nm (n) [0/3.47e+13] Rest-frame equivalent width of the broad Mg II 2796 (Å) (EWBROADMGII_2796) (spect.line.eqWidth)
  FWHM-MGII2796n km/s (n) [0/900] Full width at half maximum of the narrow Mg II 2796 (FWHMNARROWMGII_2796) (spect.line.width)
  EW-MGII2796n 0.1nm (n) [0/9.86e+09] Rest-frame equivalent width of the narrow Mg II 2796 (Å) (EWNARROWMGII_2796) (spect.line.eqWidth)
  FWHM-MGIIb km/s (n) [0/270093] Full width at half maximum of the whole broad Mg II (FWHMBROADMGII) (spect.line.width)
  EW-MGIIb 0.1nm (n) [0/5.82e+13] Rest-frame equivalent width of the whole broad Mg II (Å) (EWBROADMGII) (spect.line.eqWidth)
  FWHM-MGII km/s (n) [0/269264] Full width at half maximum of the whole Mg II emission line (FWHM_MGII) (spect.line.width)
  EW-MGII 0.1nm (n) [0/5.82e+13] Rest-frame equivalent width of the whole Mg II (EW_MGII) (spect.line.eqWidth)
  EW-FeMGII 0.1nm (n) [0/1.24145e+06] Rest-frame equivalent width of Fe within 2200-3090Å (Å) (EWFEMGII) (spect.line.eqWidth)
  NPix-MGII   [0/310] Number of good pixels at the rest-frame 2700-2900Å (LINENPIXMGII) (meta.number)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  S/N-MGII  (n) [0/1813.21] Median signal-to-noise ratio per pixel at the rest-frame 2700-2900Å (LINEMEDSN_MGII) (em.wl.central;stat.median)
  chi2-MGII  (n) [-1/274.761] Reduced χ2 of Mg II emission line fit (LINEREDCHI2MGII) (stat.fit.chi2)
  QF-MGII  (n) [-1/1] Quality flag of Mg II fitting (LINEFLAGMGII) (Note 3)   (meta.code.qual;stat.fit)
  FWHM-CIVb km/s (n) [0/11605] Full width at half maximum of the broad C IV (FWHMBROADCIV) (spect.line.width)
  EW-CIVb 0.1nm (n) [0/6.85e+19] Rest-frame equivalent width of the broad C IV (Å) (EWBROADCIV) (spect.line.eqWidth)
  FWHM-CIVn km/s (n) [0/1200] Full width at half maximum of the narrow C IV (FWHMNARROWCIV) (spect.line.width)
  FWHM-CIV km/s (n) [0/11605] Full width at half maximum of the whole C IV (FWHM_CIV) (spect.line.width)
  EW-CIV 0.1nm (n) [-4.72e+25/2.46e+31] Rest-frame equivalent width of the whole C IV (Å) (EW_CIV) (spect.line.eqWidth)
  NPix-CIV   [0/281] Number of good pixels at the rest-frame 1500-1600Å (LINENPIXCIV) (meta.number)
  S/N-CIV  (n) [0/65.9714] Median signal-to-noise ratio per pixel at the rest-frame 1500-1600Å (LINEMEDSN_CIV) (em.wl.central;stat.median)
  chi2-CIV  (n) [-1/2089.66] Reduced χ2 of C IV emission line fit (LINEREDCHI2CIV) (stat.fit.chi2)
  QF-CIV  (n) [-1/1] Quality flag of C IV fitting (LINEFLAGCIV) (Note 3)   (meta.code.qual;stat.fit)
  alphal1  (n) [-5.50547/0] Wavelength power-law index from 1300 to 4661Å αlambda (ALPHA1) (spect.index)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  alphal2  (n) [-4.1927/0] Wavelength power-law index from 4661Å toward the red end of the spectrum αlambda (ALPHA2) (spect.index)
  chi2-Cont  (n) [0/865420] Reduced χ2 of continuum fitting (CONT_CHI2) (stat.fit.chi2)
  QF-Cont  (n) [0/1] Quality flag of continuum fitting (CONT_FLAG) (Note 4)   (meta.code.qual;stat.fit;spect.continuum)
  logL1350 10-7W (n) [0/49.33483] Monochromatic luminosity at 1350Å (in erg/s) (LOGL1350) (phys.luminosity)
  e_logL1350 10-7W (n) [0/11.3802] Error of logL1350 (in erg/s) (LOGL1350_ERR) (Note 5)   (stat.error)
  logL3000 10-7W (n) [-6.46228/48.4736] Monochromatic luminosity at 3000Å (in erg/s) (LOGL3000) (phys.luminosity)
  e_logL3000 10-7W (n) [0/12.1695] Error of logL3000 (in erg/s) (LOGL3000_ERR) (Note 5)   (stat.error)
  logL5100 10-7W (n) [0/48.4763] Monochromatic luminosity at 5100Å (in erg/s) (LOGL5100) (phys.luminosity;em.opt)
  e_logL5100 10-7W (n) [0/12.8869] Error of logL5100 (in erg/s) (LOGL5100_ERR) (Note 5)   (stat.error)
  logMBH-Hb Msun (n) [0/10.0117] Virial BH mass based on Hβ (LOGMBH_HB) (phys.mass)
  e_logMBH-Hb Msun (n) [0/0.06382] Error of logMBH-Hb (LOGMBHERRHB) (Note 5)   (stat.error)
  q_logMBH-Hb  (n) [-1/1] Reliability of logMBH-Hb (LOGMBHHBFLAG) (Note 6)   (meta.code.qual)
  logMBH-MGII Msun (n) [0/12.6728] Virial BH mass based on Mg II (LOGMBH_MGII) (phys.mass)
  e_logMBH-MGII Msun (n) [-1/0.13668] Error of logMBH-MGII (LOGMBHERRMGII) (Note 5)   (stat.error)
  q_logMBH-MGII  (n) [-1/1] Reliability of logMBH-MGII (LOGMBHMGIIFLAG) (Note 6)   (meta.code.qual)
  logMBH-CIV Msun (n) [-1/11.1091] Virial BH mass based on C IV (LOGMBH_CIV) (phys.mass)
  e_logMBH-CIV Msun (n) [0/0.19674] Error of logMBH-CIV (LOGMBHERRCIV) (Note 5)   (stat.error)
  q_logMBH-CIV  (n) [-1/1] Reliability of logMBH-CIV (LOGMBHCIVFLAG) (Note 6)   (meta.code.qual)
  SimbadName (char) Designation understandable by the Simbad data-base (meta.id)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
Adapt form
 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  
elapse time 0