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J/AJ/142/170
  ALFALFA survey: the α.40 HI source catalog (Haynes+, 2011)
Post annotation
img(gal)
1.J/AJ/142/170/table1(c)Properties of HI detections (15855 rows)
2.J/AJ/142/170/table2Comments on individual sources (6079 rows)
3.J/AJ/142/170/table3The ALFALFA-SDSS DR7 cross-reference (12468 rows)

 
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)UGC/AGC  (i) [7/749512] Entry number in AGC (Note G1)   (meta.id;meta.main)
  (1)O (char) link to SDSS counterpart (table 3) (meta.ref.url)
  (1)OName (char) Common name of the Optical Counterparts (OCs) (meta.id)
  (1)RAJ2000 "h:m:s" (i) Hour of right ascension (J2000) (Note 1)   (pos.eq.ra;meta.main)
  (1)DEJ2000 "d:m:s" (i) Degree of declination (J2000) (Note 1)   (pos.eq.dec;meta.main)
  (1)RAO "h:m:s" (n) Hour of right ascension (J2000) (Note 2)   (pos.eq.ra)
  (1)DEO "d:m:s" (n) Degree of declination (J2000) (Note 2)   (pos.eq.dec)
  (1)cz km/s [-470/17823] Heliocentric velocity of the HI profile midpoint (spect.dopplerVeloc;em.line.HI)
  (1)W50 km/s [4/885] Observed velocity width at 50% of peak on either side (spect.line.width)
  (1)e_W50 km/s [1/283] Error on W50 (stat.error)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (1)Si(HI) Jy.km/s [0.11/999.9] HI line flux (phot.flux.density;em.line.HI;spect.line)
  (1)e_Si(HI) Jy.km/s [0/0.63] Error on Si(HI) (stat.error)
  (1)SNR   [1.2/989.8] Ratio of peak flux to rms noise (stat.stdev;instr.det.noise;stat.max)
  (1)RMS mJy [1.37/17.99] The rms noise in the extracted spectrum at 10km/s resolution (stat.stdev;instr.det.noise)
  (1)Dist Mpc (n) [0.3/259.6] Adopted distance (pos.distance;pos.heliocentric)
  (1)logM [Msun] (n) [3.76/10.94] HI mass in logarithmic solar units, where distance has been adopted (phys.mass)
  (1+3)HIc  HI source quality code (Note G2)   (meta.code.qual)
  (1+3)OCc (char) Code for crossreference with SDSS (Note G3)   (meta.code.qual)
  (1)T2 (char) [*] Flag indicating entry in Table 2 (3) (Note)   (meta.code)
   (ALL)Simbad (char) ask the Simbad data-base about this object (meta.ref.url)
  (1)NED (char) ask the NED data-base about this object (meta.ref.url)
  (2)ALFALFA (char) Catalog identifier (N-NNN) from earlier ALFALFA data releases, where applicable (meta.id.cross)
  (2)HIc (char) HI source quality code (Note G2)   (meta.code.qual)

ALL cols
    
(n) indicates a possible blank or NULL column(i)indexed column
  (2)Comm (char) Note regarding HI source extraction and optical counterpart assignment (meta.note)
  (3)SDSS (char) SDSS-DR7 IAU name (JHHMMSS.ss+DDMMSS.s) (meta.id)
  (3)ObjID  The SDSS DR7 photometric catalog object identification number, where available (meta.id.cross)
  (3)SpObjID  (n) The SDSS DR7 spectroscopic catalog object identification number, where available (meta.id)
  (3)rmag mag [10/24.77] The r-band model magnitude (Note 1)   (phot.mag;em.opt.R)
  (3)u-r mag [-5.14/13.22] The (u-r) color index associated with the OC from the SDSS DR7 (Note 2)   (phot.color;em.opt.U;em.opt.R)
  (3)z  (n) [-0.00146/0.05973] SDSS-DR7 redshift (src.redshift)
  (3)e_z  (n) [0/0.0057] Error on z (stat.error;src.redshift)
  (3)DR7 (char) Display the SDSS-DR7 photometric catalog (Cat. II/294) data for this object (meta.ref.url)
  (3)Sloan (char) Display the SDSS online data for this object (meta.ref.url)

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