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VizieR

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J/ApJ/861/49/table2 ALFALFA extragalactic HI source catalog (Haynes+, 2018)
ALFALFA extragalactic HI source catalog; corrected version (August 2019)
spectrum/fits
spectrum
(31502 rows)
  recno=26425
Post annotation about this record
ColumnValue  Explain   (UCD)
_RAJ200015 53 23.600 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+11 57 21.00 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195015 51 01.895 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+12 06 11.13 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon022.506290 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat+44.817465 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
26425recno 26425  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

AGC010079   [1/749512] UGC/AGC number (Note 1)   (meta.id;meta.main)
NameN6007  Common name of the optical counterpart (meta.id)
RAJ200015 53 23.6 "h:m:s" (i) [0/23] HI centroid hour of RA (J2000) (pos.eq.ra;meta.main)
DEJ2000+11 57 21 "d:m:s" (i) HI centroid degree of Dec (J2000) (pos.eq.dec;meta.main)
RAO15 53 23.2 "h:m:s" Optical counterpart hour of RA (J2000) (meta.id.assoc;pos.eq.ra)
DEO+11 57 33 "d:m:s" Optical counterpart degree of Dec (J2000) (meta.id.assoc;pos.eq.dec)
Vhel10545 km/s [-430/17823] Heliocentric velocity of the HI profile midpoint (spect.dopplerVeloc;em.line.HI)
W50388 km/s [9/885] Observed velocity width at 50% of peak on either side (spect.line.width)
e_W50 7 km/s [1/296] Uncertainty in W50 (stat.error)
W20426 km/s [0/896] Observed velocity width at 20% of peak on either side (spect.line.width)
HIflux 8.34 Jy.km/s [-7.7/999.9] HI line flux density (phot.flux)
e_HIflux 0.12 Jy.km/s [0.02/1.2] Uncertainty in HIflux (stat.error)
SNR 38.4   [1.2/964] Ratio of peak flux to rms noise (instr.det.noise)
rms 2.47 mJy [1.2/18] The RMS noise in the extracted spectrum at 10 km/s resolution (instr.det.noise)
Dist152.2 Mpc [0.3/259.6] Adopted distance, where applicable (pos.distance;pos.heliocentric)
e_Dist 2.3 Mpc [0/31] Uncertainty in Dist (stat.error)
logMHI10.66 [Msun] [3.7/11] log HI mass where distance has been adopted (phys.mass)
e_logMHI 0.05 [Msun] [0.04/1.2] Uncertainty in logMHI (stat.error)
HI1   [1/2] HI source code (Note 2)   (meta.code)

spclick to plot  Interactive plot of the spectrum (meta.ref.url)
fitsA010079.fits  Download the spectrum FITS file (meta.ref.url)
SimbadSimbad  ask the Simbad data-base about this object (meta.ref.url)
NEDNED  ask the NED data-base about this object (meta.ref.url)
LEDALEDA  ask the LEDA data-base about this object (meta.ref.url)
  
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