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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

  ALFALFA extragalactic HI source catalog (Haynes+, 2018) Query spectra/fits /fits
Post annotation
1.J/ApJ/861/49/table2(c)ALFALFA extragalactic HI source catalog; corrected version (August 2019)[spectrum/fits]
(31502 rows)
2.J/ApJ/861/49/table3(c)ALFALFA OH megamaser (OHM) candidate catalog (19 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)AGC   [1/749512] UGC/AGC number (Note 1)   (;meta.main)
   (ALL)Name (char) Common name of the optical counterpart (
   (ALL)RAJ2000 "h:m:s" (i) [0/23] HI centroid hour of RA (J2000) (pos.eq.ra;meta.main)
   (ALL)DEJ2000 "d:m:s" (i) HI centroid degree of Dec (J2000) (pos.eq.dec;meta.main)
   (ALL)RAO "h:m:s" (n) Optical counterpart hour of RA (J2000) (;pos.eq.ra)
   (ALL)DEO "d:m:s" (n) Optical counterpart degree of Dec (J2000) (;pos.eq.dec)
  (1)Vhel km/s [-430/17823] Heliocentric velocity of the HI profile midpoint (spect.dopplerVeloc;em.line.HI)
   (ALL)W50 km/s [9/885] Observed velocity width at 50% of peak on either side (spect.line.width)
  (1)e_W50 km/s [1/296] Uncertainty in W50 (stat.error)
  (1)W20 km/s [0/896] Observed velocity width at 20% of peak on either side (spect.line.width)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)HIflux [-7.7/999.9] HI line flux density (phot.flux)
  (1)e_HIflux [0.02/1.2] Uncertainty in HIflux (stat.error)
   (ALL)SNR   [1.2/964] Ratio of peak flux to rms noise (instr.det.noise)
   (ALL)rms mJy [1.2/18] The RMS noise in the extracted spectrum at 10 km/s resolution (instr.det.noise)
  (1)Dist Mpc [0.3/259.6] Adopted distance, where applicable (pos.distance;pos.heliocentric)
  (1)e_Dist Mpc [0/31] Uncertainty in Dist (stat.error)
  (1)logMHI [Msun] [3.7/11] log HI mass where distance has been adopted (phys.mass)
  (1)e_logMHI [Msun] [0.04/1.2] Uncertainty in logMHI (stat.error)
  (1)HI   [1/2] HI source code (Note 2)   (meta.code)
  (1)sp (char) Interactive plot of the spectrum (meta.ref.url)
  (1)fits (char) Download the spectrum FITS file (meta.ref.url)
  (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)

ALL cols
(n) indicates a possible blank or NULL column(i)indexed column
   (ALL)LEDA (char) ask the LEDA data-base about this object (meta.ref.url)
  (2)Fcent MHz [1360.7/1429.3] Frequency of the center of the line signal (em.freq)
  (2)z  (n) [0.16/0.23] Redshift (src.redshift)
  (2)f_AGC (char) Flag(s) (Note 1)   (meta.code)

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