VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

VizieR

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/ApJS/280/28
  OB associations from LAMOST DR7 & Gaia DR3 (Liu+, 2025)
ReadMe+ftp
2025ApJS..280...28L
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJS/280/28/table1(c)The parameters of 67 OB associations and 112 OB association candidates (179 rows)
2.J/ApJS/280/28/table2(c)The 3707 OB members for 67 OB associations and 112 OB association candidates (3707 rows)
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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)
   (ALL)Seq  (i) [1/179] Cluster identifier in this work (meta.id;meta.main)
   (ALL)GLON deg [64.72/212.22] Galactic longitude (pos.galactic.lon)
   (ALL)GLAT deg [-13.37/7.27] Galactic latitude (pos.galactic.lat)
   (ALL)pmRA mas/yr [-3.89/3.74] Average proper motion along RA (pos.pm;pos.eq.ra)
   (ALL)pmDE mas/yr [-8.41/0.63] Average proper motion along DE (pos.pm;pos.eq.dec)
   (ALL)Vlos km/s [-103.5/227.45] Average line-of-sight velocity (phys.veloc;stat.mean)
  (1)e_Vlos km/s [1.6/23.41] Uncertainty in Vlos (stat.error;phys.veloc;stat.mean)
   (ALL)Vl km/s [-224.19/61.45] Average velocity along GLON (stat.mean;phys.veloc;pos.galactic.lon)
  (1)e_Vl km/s [0.31/11.97] Uncertainty in Vl (stat.error;phys.veloc;pos.galactic.lon)
   (ALL)Vb km/s [-14.34/20.03] Average velocity along GLAT (stat.mean;phys.veloc;pos.galactic.lat)

ALL cols		    
 (i)indexed column
  (1)e_Vb km/s [0.28/11.48] Uncertainty in Vb (stat.error;phys.veloc;pos.galactic.lat)
  (1)Dsun pc [562/4657] Average heliocentric distance (pos.distance)
  (1)e_Dsun pc [10/420] Uncertainty in dsun (stat.error;pos.distance)
  (1)GNum   [5/545] Total number of OB stars in the group (meta.number)
  (1)ONum   [0/9] Number of O-type stars in group (meta.number)
  (1)Size pc [0/307] Diameter of OB association (phys.size.diameter)
  (1)_RA.icrs deg (i) Right Ascension (ICRS, epoch 2000) computed by CDS (pos.eq.ra)
  (1)_DE.icrs deg (i) Declination (ICRS, epoch 2000) computed by CDS (pos.eq.dec)
  (2)ObsID   [2403009/733515159] LAMOST DR7 object identifier (meta.id;obs)
  (2)LAMOST (char) LAMOST DR7 object designation (JHHMMSS.ss+DDMMSS.s) (meta.id;meta.main)
  (2)RAJ2000 deg (i) [8.29/353] LAMOST DR7 Right Ascension (J2000) (pos.eq.ra;meta.main)
  (2)DEJ2000 deg (i) [-4.72/61] LAMOST DR7 Declination (J2000) (pos.eq.dec;meta.main)
  (2)RVel km/s [-97/67] Radial velocity from laspec algorithm (spect.dopplerVeloc)

ALL cols		    
 (i)indexed column
  (2)e_RVel km/s [0.5/18] Uncertainty in RVel (stat.error;spect.dopplerVeloc)
  (2)Gaia  Gaia DR3 identifier (meta.id.cross)
  (2)e_pmRA mas/yr [0.01/0.06] Uncertainty in pmRA (stat.error;pos.pm;pos.eq.ra)
  (2)e_pmDE mas/yr [0.01/0.04] Uncertainty in pmDE (stat.error;pos.pm;pos.eq.dec)
  (2)Xpos kpc [-13/-7.6] Galactocentric coordinate in the direction opposite the Sun (pos.galactocentric;pos.cartesian.x)
  (2)Ypos kpc [-1.7/3.1] Galactocentric coordinate in the direction of Galactic rotation (pos.galactocentric;pos.cartesian.y)
  (2)Zpos kpc [-0.4/0.51] Galactocentric coordinate in the direction north of Galactic pole (pos.galactocentric;pos.cartesian.z)
  (2)Rpgeo pc [489.9/5317.1] Median of the photogeometric distance posterior from I/352 (pos.distance;stat.median)
  (2)B_Rpgeo pc [497/5852] The 84th percentile of Rpgeo (pos.distance;stat.median;stat.max)
  (2)b_Rpgeo pc [483/4781] The 16th percentile of Rpgeo (pos.distance;stat.median;stat.min)
  (2)BJ21 (char) Display data from Bailer-Jones+ 2021, I/352 (meta.ref.url)
  (2)SpT (char) Spectral type (Note 1)   (src.spType)
  (2)L24 (char) Display data from Liu+ 2024, J/ApJS/275/24 (meta.ref.url)
  (2)Ver (char) LAMOST release the star can be found in; DR3, DR5 or DR7 (time.release;meta.table)

ALL cols		    
 (i)indexed column
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