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J/MNRAS/549/G853
  A new Gaia census of OB associations (Quintana+, 2026)
ReadMe+ftp
2026MNRAS.549g.853Q
Similar Catalogs
Post annotation 		img(gal)
1.J/MNRAS/549/G853/table1(c)Main catalogue (56 rows)
2.J/MNRAS/549/G853/members(c)OB members of the OB associations (2551 rows)
3.J/MNRAS/549/G853/rejected(c)Members of the rejected candidate OB associations (1308 rows)
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Simple ConstraintList Of Constraints
 
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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+2)Name (char) Assigned OB association name (Name) (meta.id;meta.main)
  (1)AName (char) Alternative name for the OB association (Alternative name) (meta.id)
   (ALL)ID  ID assigned to the OB association, ordered by increasing median line (ID) (meta.id)
  (1)N  Number of identified members (N) (meta.number)
   (ALL)RA_ICRS deg (i) Median right ascension (ICRS) at Ep=2016.0 (RA_ICRS) (pos.eq.ra;meta.main)
   (ALL)DE_ICRS deg (i) Median declination (ICRS) at Ep=2016.0 (DE_ICRS) (pos.eq.dec;meta.main)
   (ALL)GLON deg Median Galactic longitude (GLON) (pos.galactic.lon)
   (ALL)GLAT deg Median Galactic latitude (GLAT) (pos.galactic.lat)
  (1+2)AV mag Median extinction in the V-band (AV) (phys.absorption)
  (1)d pc Median SED-fitted line-of-sight distance (d) (pos.distance)

ALL cols		    
 (i)indexed column
   (ALL)X pc Median X coordinate in heliocentric Cartesian Galactic coordinates (X) (pos.cartesian.x;stat.median)
  (1)s_X pc Intrinsic dispersion in the X direction (Sigma_X) (instr.dispersion)
   (ALL)Y pc Median Y coordinate in heliocentric Cartesian Galactic coordinates (Y) (pos.cartesian.y;stat.median)
  (1)s_Y pc Intrinsic dispersion in the Y direction (Sigma_Y) (instr.dispersion)
   (ALL)Z pc Median Z coordinate in heliocentric Cartesian Galactic coordinates (Z) (pos.cartesian.z;stat.median)
  (1)s_Z pc Intrinsic dispersion in the Z direction (Sigma_Z) (instr.dispersion)
  (1)Vl km/s Median transverse velocity in Galactic longitude (V_l) (phys.veloc)
  (1)s_Vl km/s Intrinsic dispersion in transverse velocity in Galactic longitude (Sigma_Vl) (stat.error)
  (1)Vb km/s Median transverse velocity in Galactic latitude (V_b) (phys.veloc)
  (1)s_Vb km/s Intrinsic dispersion in transverse velocity in Galactic latitude (Sigma_Vb) (stat.error)
  (1)kappal km/s/pc Linear velocity gradient in Galactic longitude (Kappa_l) (arith.grad;phys.veloc)
  (1)e_kappal km/s/pc Error on linear velocity gradient in Galactic longitude (Errkappal) (stat.error)
  (1)Agekinl Myr (n) Linear kinematic age in Galactic longitude (Age_kin,l) (pos.distance;pos.galactic.lon)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)e_Agekinl Myr (n) Error on linear kinematic age in Galactic longitude (ErrAgekin,l) (stat.error)
  (1)kappab km/s/pc Linear velocity gradient in Galactic latitude (Kappa_b) (arith.grad;phys.veloc)
  (1)e_kappab km/s/pc Error on linear velocity gradient in Galactic latitude (ErrKappab) (stat.error)
  (1)Agekinb Myr (n) Linear kinematic age in Galactic latitude (Age_kin,b) (pos.distance;pos.galactic.lat)
  (1)e_Agekinb Myr (n) Error on linear kinematic age in Galactic latitude (ErrAgekin,b) (stat.error)
  (1)NO  Estimated median number of systems containing a O-type star in the O (N_O) (meta.number)
  (1)e_NO  Lower error on NO, 16th percentile (NOP16) (stat.error)
  (1)E_NO  Upper error on NO, 84th percentile (NOP84) (stat.error;stat.max)
  (1)NB  Estimated median number of systems containing a B-type star in the O (N_B) (meta.number)
  (1)e_NB  Lower error on NBP, 16th percentile (NBP16) (stat.error)
  (1)E_NB  Upper error on NBP, 84th percentile (NBP84) (stat.error;stat.max)
  (1)Mtot Msun Estimated median total stellar initial mass (M_tot) (phys.mass;stat.median)
  (1)e_Mtot Msun Lower error on Mtot, 16th percentile (MtotP16) (stat.error)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)E_Mtot Msun Upper error on Mtot, 84th percentile (MtotP84) (stat.error;stat.max)
  (1)Agemax Myr Estimated maximum isochronal age from the hottest member (Age_max) (time.age;stat.max)
  (1)NC  Number of crossmatched members with the OCs from Hunt & Reffert (2024, Cat. J/A+A/686/A42 (N_OC) (meta.number)
  (1)RelOCsAge (char) Myr Age range of the overlapping OCs from Hunt & Reffert (2024, Cat. J/A+A/686/A42) (Related OCs age) (time.age)
  (1)RelOCs (char) Crossmatched OCs from Hunt & Reffert (2024, Cat. J/A+A/686/A42) (Related OCs) (meta.id)
  (1)NG  Number of crossmatched members with the stellar groups from Kounkel (N_G) (meta.number)
  (1)RelGrAge (char) Myr Age range of the overlapping stellar groups from Kounkel et al. (2020, Cat. J/AJ/160/279) (Related groups age) (time.age)
  (1)RelGr (char) Crossmatched groups from Kounkel et al. (2020, Cat. J/AJ/160/279) (Related groups) (meta.id)
  (1)AssSCL (char) Spatially related supercloud from Kormann et al. (2026A&A...706A.161K) (Associated supercloud) (meta.id)
  (2+3)GaiaDR3  (n) Gaia DR3 source ID (0 if not in Gaia) (GaiaDR3) (meta.id;meta.main)
  (2+3)HD (char) Henry Draper Number (HD) (meta.id)
  (2+3)e_RA_ICRS deg Standard error on right ascension (eRAICRS) (stat.error;pos.eq.ra)
  (2+3)e_DE_ICRS deg Standard error on declination (eDEICRS) (stat.error;pos.eq.dec)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3)plx mas Corrected parallax (parallax) (pos.parallax.trig)
  (2+3)e_plx mas Standard error on corrected parallax (parallax_error) (stat.error;pos.parallax)
  (2+3)pmRA mas/yr Mean proper motion in right ascension multiplied by cos(dec) (pmra) (pos.pm;pos.eq.ra)
  (2+3)e_pmRA mas/yr Standard error of pmra (pmra_error) (stat.error;pos.pm;pos.eq.ra)
  (2+3)pmDE mas/yr Mean proper motion in declination (pmdec) (pos.pm;pos.eq.dec)
  (2+3)e_pmDE mas/yr Standard error of pml (pmdec_error) (stat.error;pos.pm;pos.eq.dec)
  (2+3)pml mas/yr Mean proper motion in Galactic longitude multiplied by cos(b) (pml) (pos.pm)
  (2+3)e_pml mas/yr Standard error of pml (pml_error) (stat.error)
  (2+3)pmb mas/yr Mean proper motion in Galactic latitude (pmb) (pos.pm)
  (2+3)e_pmb mas/yr Standard error of pmb (pmb_error) (stat.error)
  (2)Marker (char) Marker used to plot the OB association members in the paper (marker) (meta.code)
  (2)Colour (char) Colour used to plot the OB association members in the paper (colour) (meta.code)
  (2+3)_RA.icrs deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)

ALL cols		    
(n) indicates a possible blank or NULL column(i)indexed column
  (2+3)_DE.icrs deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)

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