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Simple TargetList Of TargetsFast Xmatch with large catalogs or Simbad
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NB: The epoch used for the query is the original epoch of the table(s)Radius Box size

  Ultra-compact high velocity clouds from ALFALFA (Adams+, 2013)
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1.J/ApJ/768/77/uchvc(c)ALFALFA ultra-compact high velocity clouds (UCHVCs) in the α.40 survey and inferred cloud properties (tables 1 and 3) (59 rows)
2.J/ApJ/768/77/table2(c)UCHVCs from Giovanelli+ (2010ApJ...708L..22G) that fail UCHVC criteria (10 rows)
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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)HVC (char) HVC designation ( (Note G1)   (;meta.main)
  (1)f_HVC (char) [sabc, ] Flag on source (Note 1)   (meta.code)
   (ALL)AGC  Arecibo General Catalog number (Note 2)   (
   (ALL)RAJ2000 "h:m:s" (i) Hour of right ascension (J2000) (Note 3)   (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) Degree of declination (J2000) (Note 3)   (pos.eq.dec;meta.main)
   (ALL)cz km/s [-461/323] Heliocentric cz (phys.veloc;pos.heliocentric)
   (ALL)Vlsr km/s [-454/327] LSR velocity (assumed solar motion of 20km/s toward l=57°, b=25°) (phys.veloc;src.orbital.meanMotion;pos.lsr)
   (ALL)Vgsr km/s [-282/298] Velocity in the Galactic standard of rest frame (GSR; Vgsr=Vlsr+225sinlcosb) (phys.veloc;pos.galactic)
   (ALL)VLG km/s [-294/264] Velocity with respect to the Local Group (LG) reference (Note 4)   (meta.ref;phys.veloc;pos.frame)
   (ALL)W50 km/s [15/62] HI line FWHM (W50) (spect.line.width)

ALL cols
 (i)indexed column
   (ALL)e_W50 km/s [1/15] W50 uncertainty (stat.error)
   (ALL)a arcmin [4/29] Estimated cloud major diameter (Note 5)   (phys.angSize)
   (ALL)b arcmin [3/16] Estimated cloud minor diameter (Note 5)   (phys.angSize)
   (ALL)S21 [0.2/8.6] 21cm integrated flux density (phot.flux)
   (ALL)S/N   [4/44] Signal-to-noise ratio of the line (Note 6)   (stat.snr;spect.line)
   (ALL)N3   [0/5] The number of α.40 HVC neighbors within D=3° (for f=0.2°/km/s) (meta.number)
   (ALL)N10   [0/42] The number of α.40 HVC neighbors within D=10° (for f=0.2°/km/s) (meta.number)
   (ALL)Notes (char) Notes (Note 7)   (meta.note)
  (1)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
   (ALL)NED (char) ask the NED data-base about this object (meta.ref.url)
  (1)DHI kpc [1.2/6.2] HI diameter at d=1Mpc (Equation 9) (pos.distance)
  (1)nHI [cm-3] [-3.7/-2.1] Log of the mean atomic HI density at d=1Mpc (Equation 5) (phys.density)
  (1)logNHI [cm-2] [18.3/19.3] Log of the mean HI column density (Equation 6) (phys.columnDensity;stat.mean)

ALL cols
 (i)indexed column
  (1)logMHI [Msun] [5/6.3] Log of the HI mass at d=1Mpc (Equation 7) (phys.mass)
  (1)logMdyn [Msun] [6.8/8.4] Log of the indicative dynamical mass within DHI at d=1Mpc (Equation 8) (phys.mass)

ALL cols
 (i)indexed column
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