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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/ApJ/768/77
  Ultra-compact high velocity clouds from ALFALFA (Adams+, 2013)
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2013ApJ...768...77A
Similar Catalogs
Post annotation 		img(gal)
1.J/ApJ/768/77/uchvcALFALFA ultra-compact high velocity clouds (UCHVCs) in the {alpha}.40 survey and inferred cloud properties (tables 1 and 3) (59 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. ((unassigned))
  HVC (char) HVC designation (LLL.ll+BB.bb+Vlsr) (Note G1)   ((unassigned);(unassigned))
  f_HVC (char) [sabc, ] Flag on source (Note 1)   ((unassigned))
  AGC  Arecibo General Catalog number (Note 2)   ((unassigned))
  RAJ2000 "h:m:s" Hour of right ascension (J2000) (Note 3)   ((unassigned);(unassigned))
  DEJ2000 "d:m:s" Degree of declination (J2000) (Note 3)   ((unassigned);(unassigned))
  cz km/s [-461/323] Heliocentric cz ((unassigned);(unassigned))
  Vlsr km/s [-454/327] LSR velocity (assumed solar motion of 20km/s toward l=57°, b=25°) ((unassigned);(unassigned);(unassigned))
  Vgsr km/s [-282/298] Velocity in the Galactic standard of rest frame (GSR; Vgsr=Vlsr+225sinlcosb) ((unassigned);(unassigned))
  VLG km/s [-294/264] Velocity with respect to the Local Group (LG) reference (Note 4)   ((unassigned);(unassigned);(unassigned))
  W50 km/s [15/62] HI line FWHM (W50) ((unassigned))

ALL cols		    
 (i)indexed column
  e_W50 km/s [1/15] W50 uncertainty ((unassigned))
  a arcmin [4/29] Estimated cloud major diameter (Note 5)   ((unassigned))
  b arcmin [3/16] Estimated cloud minor diameter (Note 5)   ((unassigned))
  S21 Jy.km/s [0.2/8.6] 21cm integrated flux density ((unassigned))
  S/N   [4/44] Signal-to-noise ratio of the line (Note 6)   ((unassigned);(unassigned))
  N3   [0/5] The number of {alpha}.40 HVC neighbors within D=3° (for f=0.2°/km/s) ((unassigned))
  N10   [0/42] The number of {alpha}.40 HVC neighbors within D=10° (for f=0.2°/km/s) ((unassigned))
  Notes (char) Notes (Note 7)   ((unassigned))
  Simbad  ask the Simbad data-base about this object ((unassigned))
  NED  ask the NED data-base about this object ((unassigned))
  DHI kpc [1.2/6.2] HI diameter at d=1Mpc (Equation 9) ((unassigned))
  nHI [cm-3] [-3.7/-2.1] Log of the mean atomic HI density at d=1Mpc (Equation 5) ((unassigned))
  logNHI [cm-2] [18.3/19.3] Log of the mean HI column density (Equation 6) ((unassigned);(unassigned))
  logMHI [Msun] [5/6.3] Log of the HI mass at d=1Mpc (Equation 7) ((unassigned))
  logMdyn [Msun] [6.8/8.4] Log of the indicative dynamical mass within DHI at d=1Mpc (Equation 8) ((unassigned))

ALL cols		    
 (i)indexed column
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 Display your selection only Reset to default columns
usage  Display UCD1+    UCD1  

The following problems were encountered in this VizieR run:
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If you can't find a solution, report to CDS and insert into your message the following details:

.errorfile=/tmp/VR3821494.err (2026-08-11T22:18:37)
-3
-source=J/ApJ/768/77/uchvc
-ref=VIZ6a7b9fbd3a4fb6
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